The Statistical Assessment Service at George Mason University in April 2008 reported the following:
- 84% percent of the 489 climate scientists surveyed personally believe human-induced warming is occurring
- 74% of climate scientists agree that “currently available scientific evidence” substantiates its occurrence
- 5% of climate scientists believe that human activity does not contribute to greenhouse warming
To read the entire report, click on Climate Scientists Agree on Warming, Disagree on Dangers, and Don’t Trust the Media’s Coverage of Climate Change.
Science Daily in January 2009 reported that 82% of the 3,146 scientists surveyed agreed that human activity has been a significant factor in changing mean global temperatures. To read the entire article, click on Scientists Agree Human-induced Global Warming Is Real, Survey Says.
Naomi Oreskes in Science in January 2005 reported that out of 928 scientific abstracts published between 1993 and 2003 on climate change, 75% explicitly endorsed the consensus that “Earth’s climate is being affected by human activities.” 0% of the abstracts disagreed with that consensus. To read the entire article, click on The Scientific Consensus on Climate Change.
The Intergovernmental Panel on Climate Change in 2007 said in it’s Fourth Assessment Report that “There is very high confidence that the net effect of human activities since 1750 has been one of warming.” To read the entire report, click on IPCC Fourth Assessment Report.
For beliefs of scientists against global warming, click on Beliefs of Scientists (Against Global Warming).