Scientists Urge Action by Governments

Contents

Here are four recent examples of prominent scientific societies and individual scientists calling for action by governments:

#1: Letter from international scientific societies including China, France, Germany, UK, US etc

#2. Letter from US scientific societies including the AAAS, ACS, AGU, AMS etc

#3. Letter from Prof. Stephen Schneider and other distinguished climate researchers 

#4. Rajendra Pachauri's call for CO₂ at 350 ppm

Notes:

#1: The international scientific societies signing the letter in #1 are:

Academia Brasileira de Ciéncias, Brazil
Royal Society of Canada, Canada
Chinese Academy of Sciences, China
Académie des Sciences, France
Deutsche Akademie der Naturforscher Leopoldina, Germany
Indian National Science Academy, India
Accademia Nazionale dei Lincei, Italy
Science Council of Japan, Japan
Academia Mexicana de Ciencias, Mexico
Russian Academy of Sciences, Russia
Academy of Science of South Africa, South Africa
Royal Society, United Kingdom
National Academy of Sciences, United States of America

#2: The US scientific societies signing the letter in #2 are:

American Association for the Advancement of Science
American Chemical Society
American Geophysical Union
American Institute of Biological Sciences
American Meteorological Society
American Society of Agronomy
American Society of Plant Biologists
American Statistical Association
Association of Ecosystem Research Centers
Botanical Society of America
Crop Science Society of America
Ecological Society of America
Natural Science Collections Alliance
Organization of Biological Field Stations
Society for Industrial and Applied Mathematics
Society of Systematic Biologists
Soil Science Society of America
University Corporation for Atmospheric Research

And here is the actual letter:

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18 US Scientific Societies and Cc Statement

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#3: The scientists signing the statement in #3 are:

Dr. Stephen Schneider *
Melvin and Joan Lane Professor for Interdisciplinary Environmental Studies
Stanford University

Dr. Thomas Lovejoy
Biodiversity Chair
The John Heinz III Center for Science, Economics, and the Environment

Dr. Michael Oppenheimer *
Albert G Milbank Professor of Geosciences and International Affairs
Princeton University

Dr. H. Ronald Pulliam
Regents Professor Emeritus
University of Georgia

Dr. Kevin Trenberth *
Head of the Climate analysis Section
National Center for Atmospheric Research

Dr. (H.C.) Bill Hare *
Potsdam Institute for Climate Impact Research

* IPCC Coordinating Lead Author or Lead Author for AR4

#4: The number 350 ppm is based on the paper by Prof. Jim Hansen et al. demonstrating danger of CO₂ levels above 350 ppm .

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What's the graphic?

This shows that climate models have been successfully backtested against the last 100 years of temperature data (black lines) on a global level and at a continental level. The output of the models including all effects (anthropogenic/human and natural) are shown in red, which follow the data including recent global warming in the last 30 years. Natural effects only, in blue, do NOT agree with the data, especially in the last 30 years. Model uncertainties are exhibited by the bands.