James Hansen (Simple English Wikipedia)

Blasing, T.J. “Recent Greenhouse Gas Concentrations Archived 2011-07-16 at the Wayback Machine,” CDIAC: Carbon Dioxide Information Analysis Center. July 2009. (Retrieved 2009-09-01.)

poptech.org (Global: low place; Simple English: low place)

http://www.poptech.org/popcasts/dan_gilbert__poptech_2007 Archived 2010-01-26 at the Wayback Machine Why haven’t we rallied our collective power to solve global warning? by Daniel Gilbert (psychologist)

southlincolncountynews.com (Global: low place; Simple English: low place)

"South Lincoln County News". www.southlincolncountynews.com. Archived from the original on 2011-07-16. Retrieved 2009-10-22.

treehugger.com (Global: 9,160^th place; Simple English: 8,765^th place)

Spyros, George. “350: The Most Important Number of Your Lifetime Archived 2010-06-23 at the Wayback Machine,” Treehugger. April 14, 2008. (Retrieved 2009-09-01.)

unfccc.int (Global: 4,528^th place; Simple English: 4,249^th place)

“Fact sheet: The need for mitigation.” UNFCCC: United Nations Framework Convention on Climate Change. June 2009. (Retrieved 2009-09-01.)

washingtonpost.com (Global: 34^th place; Simple English: 35^th place)

McKibben, Bill. “Remember This: 350 Parts Per Million,” The Washington Post. December 28, 2007. (Retrieved 2009-09-01.)

web.archive.org (Global: 1^st place; Simple English: 1^st place)

"Goddard Space Flight Center". Goddard Space Flight Center. Archived from the original on 2009-01-19. Retrieved 2008-12-28.
"James Hansen". Academia Europaea. Archived from the original on 28 March 2019.
http://www.poptech.org/popcasts/dan_gilbert__poptech_2007 Archived 2010-01-26 at the Wayback Machine Why haven’t we rallied our collective power to solve global warning? by Daniel Gilbert (psychologist)
Spyros, George. “350: The Most Important Number of Your Lifetime Archived 2010-06-23 at the Wayback Machine,” Treehugger. April 14, 2008. (Retrieved 2009-09-01.)
"CO2 curve ticks upward as key climate talks loom - Yahoo! News". Archived from the original on 2009-11-27. Retrieved 2017-08-31.
Blasing, T.J. “Recent Greenhouse Gas Concentrations Archived 2011-07-16 at the Wayback Machine,” CDIAC: Carbon Dioxide Information Analysis Center. July 2009. (Retrieved 2009-09-01.)
"South Lincoln County News". www.southlincolncountynews.com. Archived from the original on 2011-07-16. Retrieved 2009-10-22.

wmo.int (Global: 1,896^th place; Simple English: 753^rd place)

http://www.wmo.int/pages/mediacentre/press_releases/pr_868_en.html

wsj.com (Global: 79^th place; Simple English: 117^th place)

online.wsj.com

"Envoy Says U.S. Won't Pay China to Cut Emissions - WSJ.com". online.wsj.com. Retrieved 2009-12-10.

wsj.com

Torello, Alessandro (14 December 2009). "U.N. Sets High Bar On Emissions Cuts" – via www.wsj.com.

yahoo.com (Global: 38^th place; Simple English: 36^th place)

news.yahoo.com

"CO2 curve ticks upward as key climate talks loom - Yahoo! News". Archived from the original on 2009-11-27. Retrieved 2017-08-31.

James Hansen (Simple English Wikipedia)

350.org (Global: low place; Simple English: low place)

ae-info.org (Global: low place; Simple English: low place)

bangordailynews.com (Global: 5,430th place; Simple English: 3,814th place)

cbsnews.com (Global: 108th place; Simple English: 114th place)

cnn.com (Global: 28th place; Simple English: 21st place)

heinzawards.net (Global: low place; Simple English: low place)

nasa.gov (Global: 75th place; Simple English: 30th place)

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nytimes.com (Global: 7th place; Simple English: 8th place)

ornl.gov (Global: 5,534th place; Simple English: 1,920th place)

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poptech.org (Global: low place; Simple English: low place)

southlincolncountynews.com (Global: low place; Simple English: low place)

treehugger.com (Global: 9,160th place; Simple English: 8,765th place)

unfccc.int (Global: 4,528th place; Simple English: 4,249th place)

washingtonpost.com (Global: 34th place; Simple English: 35th place)

web.archive.org (Global: 1st place; Simple English: 1st place)

wmo.int (Global: 1,896th place; Simple English: 753rd place)

wsj.com (Global: 79th place; Simple English: 117th place)

online.wsj.com

wsj.com

yahoo.com (Global: 38th place; Simple English: 36th place)

news.yahoo.com

bangordailynews.com (Global: 5,430^th place; Simple English: 3,814^th place)

cbsnews.com (Global: 108^th place; Simple English: 114^th place)

cnn.com (Global: 28^th place; Simple English: 21^st place)

nasa.gov (Global: 75^th place; Simple English: 30^th place)

nasonline.org (Global: 3,325^th place; Simple English: 9,388^th place)

nytimes.com (Global: 7^th place; Simple English: 8^th place)

ornl.gov (Global: 5,534^th place; Simple English: 1,920^th place)

treehugger.com (Global: 9,160^th place; Simple English: 8,765^th place)

unfccc.int (Global: 4,528^th place; Simple English: 4,249^th place)

washingtonpost.com (Global: 34^th place; Simple English: 35^th place)

web.archive.org (Global: 1^st place; Simple English: 1^st place)

wmo.int (Global: 1,896^th place; Simple English: 753^rd place)

wsj.com (Global: 79^th place; Simple English: 117^th place)

yahoo.com (Global: 38^th place; Simple English: 36^th place)