I think I'll stick with the opinion of these guys.
National Academy of Sciences, United States of America
American Meteorological Society
Royal Society, United Kingdom
Russian Academy of Sciences, Russia
Academia Brasiliera de Ciências, Brazil
Royal Society of Canada, Canada
Academié des Sciences, France
Deutsche Akademie der Naturforscher, Germany
Indian National Science Academy, India
Accademia dei Lincei, Italy
Science Council of Japan, Japan
Academia Brasileira de Ciéncias,Brazil
Académie des Sciences, France
Academy of Science of South Africa, South Africa
Chinese Academy of Sciences, China
Indian National Science Academy, India
Academia Mexicana de Ciencias, Mexico
Australian Academy of Sciences
Royal Flemish Academy of Belgium for Sciences and the Arts
Brazilian Academy of Sciences
Caribbean Academy of Sciences
FRrench Academy of Sciences
German Academy of Natural Scientists Leopoldina
Indian National Science Academy
Indonesian Academy of Sciences
Royal Irish Academy
Academy of Sciences Malaysia
Academy Council of the Royal Society of New Zealand
Royal Swedish Academy of Sciences
Union of Concerned Scientists
Woods Hole Research Center
United Nations Framework Convention on Climate Change
American Association for the Advancement of Science
National Academy of Sciences, United States of America
American Meteorological Society
Royal Society, United Kingdom
Russian Academy of Sciences, Russia
Academia Brasiliera de Ciências, Brazil
Royal Society of Canada, Canada
Academié des Sciences, France
Deutsche Akademie der Naturforscher, Germany
Indian National Science Academy, India
Accademia dei Lincei, Italy
Science Council of Japan, Japan
Academia Brasileira de Ciéncias,Brazil
Académie des Sciences, France
Academy of Science of South Africa, South Africa
Chinese Academy of Sciences, China
Indian National Science Academy, India
Academia Mexicana de Ciencias, Mexico
Australian Academy of Sciences
Royal Flemish Academy of Belgium for Sciences and the Arts
Brazilian Academy of Sciences
Caribbean Academy of Sciences
FRrench Academy of Sciences
German Academy of Natural Scientists Leopoldina
Indian National Science Academy
Indonesian Academy of Sciences
Royal Irish Academy
Academy of Sciences Malaysia
Academy Council of the Royal Society of New Zealand
Royal Swedish Academy of Sciences
Union of Concerned Scientists
Woods Hole Research Center
United Nations Framework Convention on Climate Change
American Association for the Advancement of Science