03:2403:24, 8 June 2012diffhist+4
Climate change mitigation
2009|title = A Plan to Power 100 Percent of the Planet with Renewables" (originally published as "A Path to Sustainable Energy by 2030")|url = http://www.scientificamerican.com/article.cfm?id=a-path-to-sustainable-energy-by-2030|journal = SciAm
03:0803:08, 8 June 2012diffhist−4
Christopher Field
Vicente Barros. http://www.nature.com/nature/journal/v462/n7276/full/nature08649.html Dec.2009 Scott R. Loarie1, Philip B. Duffy1,2, Healy Hamilton3, Gregory P. Asner1, Christopher B. Field1 & David D. Ackerly4
03:0603:06, 8 June 2012diffhist+22
Resource depletion
Gregory P Asner http://www.nature.com/nature/journal/v462/n7276/full/nature08649.html The velocity of climate change (24 December 2009)
01:0101:01, 8 June 2012diffhist+255
Climate change in the United States
Public attention of the record-breaking warm winter in 2011-2012<ref>http://www.nytimes.com/2012/04/18/science/earth/americans-link-global-warming-to-extreme-weather-poll-says.html</ref> increasing as