The National Academy of Sciences of the U.S. (set up by President Lincoln to advise on scientific issues), as well as major National Academies of Science around the world and every other
authoritative body of scientists active in climate research have stated that the science is clear: the world is heating up and humans are primarily responsible.
These issues are likely to be a major focus
of the forthcoming report by the Intergovernmental Panel on Climate Change (IPCC), the
body of scientists who produce the most
authoritative and comprehensive summaries
of climate research.