It's true, because the South Dakota legislature says it's true.
http://www.treehugger.com/files/2010/02/south-dakota-resolution-schools-teach-astrological-global-warming.phpNOW, THEREFORE, BE IT RESOLVED, by the House of Representatives of the Eighty-fifth Legislature of the State of South Dakota, the Senate concurring therein, that the South Dakota Legislature urges that instruction in the public schools relating to global warming include the following:
(1) That global warming is a scientific theory rather than a proven fact;
(2) That there are a variety of climatological, meteorological, astrological, thermological, cosmological, and ecological dynamics that can effect
world weather phenomena and that the significance and interrelativity of these factors is largely speculative; and
(3) That the debate on global warming has subsumed political and philosophical viewpoints which have complicated and prejudiced the scientific investigation of global warming phenomena; and
BE IT FURTHER RESOLVED, that the Legislature urges that all instruction on the theory of global warming be appropriate to the age and academic development of the student and to the prevailing classroom circumstances.