The conclusions reached by the IPCC have been explicitly...

The conclusions reached by the IPCC have been explicitly endorsed by ...

Academia Brasiliera de Ciências (Bazil)
Royal Society of Canada
Chinese Academy of Sciences
Academié des Sciences (France)
Deutsche Akademie der Naturforscher Leopoldina (Germany)
Indian National Science Academy
Accademia dei Lincei (Italy)
Science Council of Japan
Russian Academy of Sciences
Royal Society (United Kingdom)
National Academy of Sciences (United States of America)
Australian Academy of Sciences
Royal Flemish Academy of Belgium for Sciences and the Arts
Caribbean Academy of Sciences
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

see this statement:

http://nationalacademies.org/onpi/06072005.pdf

In addition to these national academies, the following institutions specializing in climate, atmosphere, ocean, and/or earth sciences have endorsed or published the same conclusions as presented in the TAR report:

NASA's Goddard Institute of Space Studies (GISS)
National Oceanic and Atmospheric Administration (NOAA)
National Academy of Sciences (NAS)
State of the Canadian Cryosphere (SOCC)
Environmental Protection Agency (EPA)
Royal Society of the United Kingdom (RS)
American Geophysical Union (AGU)
American Institute of Physics (AIP)
National Center for Atmospheric Research (NCAR)
American Meteorological Society (AMS)
Canadian Meteorological and Oceanographic Society (CMOS)


If this is not scientific consensus, what in the world would a consensus look like?