Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:109:\"Declaration of views_handler_field::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:83:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_field.inc\";s:5:\"%line\";i:1148;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:132:\"Declaration of views_handler_sort::options_validate() should be compatible with views_handler::options_validate($form, &$form_state)\";s:5:\"%file\";s:82:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_sort.inc\";s:5:\"%line\";i:165;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:128:\"Declaration of views_handler_sort::options_submit() should be compatible with views_handler::options_submit($form, &$form_state)\";s:5:\"%file\";s:82:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_sort.inc\";s:5:\"%line\";i:165;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:108:\"Declaration of views_handler_sort::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:82:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_sort.inc\";s:5:\"%line\";i:165;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:134:\"Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state)\";s:5:\"%file\";s:84:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter.inc\";s:5:\"%line\";i:599;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:110:\"Declaration of views_handler_filter::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:84:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter.inc\";s:5:\"%line\";i:599;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:127:\"Declaration of views_plugin_query::options_submit() should be compatible with views_plugin::options_submit($form, &$form_state)\";s:5:\"%file\";s:81:\"/home/naturalh/public_html/sites/all/modules/views/plugins/views_plugin_query.inc\";s:5:\"%line\";i:181;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:102:\"Declaration of views_plugin_style_default::options() should be compatible with views_object::options()\";s:5:\"%file\";s:89:\"/home/naturalh/public_html/sites/all/modules/views/plugins/views_plugin_style_default.inc\";s:5:\"%line\";i:24;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:130:\"Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state)\";s:5:\"%file\";s:79:\"/home/naturalh/public_html/sites/all/modules/views/plugins/views_plugin_row.inc\";s:5:\"%line\";i:136;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:178:\"Declaration of content_handler_field::element_type() should be compatible with views_handler_field::element_type($none_supported = false, $default_empty = false, $inline = false)\";s:5:\"%file\";s:98:\"/home/naturalh/public_html/sites/all/modules/cck/includes/views/handlers/content_handler_field.inc\";s:5:\"%line\";i:229;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:108:\"Declaration of views_handler_area::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:82:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_area.inc\";s:5:\"%line\";i:81;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:133:\"Declaration of views_handler_area_text::options_submit() should be compatible with views_handler::options_submit($form, &$form_state)\";s:5:\"%file\";s:87:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_area_text.inc\";s:5:\"%line\";i:121;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:305;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:400;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:75:\"Non-static method Pagination::getInstance() should not be called statically\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:46:\"Only variables should be assigned by reference\";s:5:\"%file\";s:73:\"/home/naturalh/public_html/sites/all/modules/pagination/pagination.module\";s:5:\"%line\";i:342;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:136:\"Declaration of views_handler_argument::options_validate() should be compatible with views_handler::options_validate($form, &$form_state)\";s:5:\"%file\";s:86:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_argument.inc\";s:5:\"%line\";i:917;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:112:\"Declaration of views_handler_argument::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:86:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_argument.inc\";s:5:\"%line\";i:917;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790313) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:137:\"Non-static method views_many_to_one_helper::option_definition() should not be called statically, assuming $this from incompatible context\";s:5:\"%file\";s:96:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc\";s:5:\"%line\";i:25;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:148:\"Declaration of views_handler_filter_node_status::operator_form() should be compatible with views_handler_filter::operator_form(&$form, &$form_state)\";s:5:\"%file\";s:100:\"/home/naturalh/public_html/sites/all/modules/views/modules/node/views_handler_filter_node_status.inc\";s:5:\"%line\";i:15;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:116:\"Declaration of views_handler_relationship::query() should be compatible with views_handler::query($group_by = false)\";s:5:\"%file\";s:90:\"/home/naturalh/public_html/sites/all/modules/views/handlers/views_handler_relationship.inc\";s:5:\"%line\";i:149;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

Warning: Duplicate entry '749809541' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/home/naturalh/public_html/sites/all/modules/views/views.module\";s:5:\"%line\";i:1118;}', 3, '', 'http://naturalhistorymag.com/samplings/163524/sunlight-hampers-oil-dispersants', '', '3.84.139.101', 1563790314) in /home/naturalh/public_html/includes/database.mysqli.inc on line 134

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Sunlight Hampers Oil Dispersants | Natural History Magazine

Sunlight Hampers Oil Dispersants

An aircraft sprays chemical dispersants onto a sunlight-weathered oil slick from the 2010 spill in the Gulf of Mexico.

Stephen Lehmann/Coast Guard

The 2010 Deepwater Horizon disaster spewed 795 million liters of crude oil into the Gulf of Mexico over a period of five months. One of the techniques used to mitigate the oil’s impact on the environment was the release of chemicals from airplanes flying above surface oil slicks. In all, 412 flights over a sixty-one-day period dropped nearly 3.7 million liters of chemical dispersants. The chemicals, known as surfactants, contain a combination of detergents and organic solvents, intended to help oil and water mix. This facilitates the formation of oil droplets that sink into the water column, where they are dispersed or may be ingested by microbes. Newly released analyses reveal, however, that the spraying was much less effective than expected.

The effectiveness of dispersants is known to decrease over time, as oil is weathered by the environment, but this weakening had previously been attributed to evaporation and emulsification rather than to any significant effect of sunlight. Earlier this year, a team of investigators led by Collin P. Ward of Woods Hole Oceanographic Institution in Massachusetts, determined that photochemical oxidation—the effect of sunlight on oil—affected more than half of the Deepwater Horizon’s floating oil spill within hours to days. In a more recently published study, Ward and his colleagues determined that sunlight altered not only the properties of crude oil but also the efficacy of the chemical clean-up effort.

The researchers took samples of unweathered oil collected from the spill site and artificially weathered them in the laboratory by allowing the oil to evaporate to varying degrees. Next, they exposed the weathered oil to simulated sunlight representative of that found in the Gulf of Mexico. For comparison, a control group of evaporated oil samples was kept in the dark. Sunlight had a far greater effect on the physical and chemical properties of the oil than did evaporation.

The team then tested the effectiveness of dispersants on dark-control and on sunlight-exposed oil floating in water. The chemicals were over thirty percent worse at dispersing sunlight-exposed oil from the water’s surface, compared to the oil kept in the dark. Additionally, longer sunlight exposure caused steeper drops in dispersant effectiveness.

The researchers urge that in future spills, experts from academia, government, and industry cooperate on how to respond effectively. (Environmental Science & Technology Letters)


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