Theories of manmade Climate Change

While there is a total cacophony over manmade climate change, in terms of the actual science there are only three scientific positions.

James Hansen

According to this theory, carbon dioxide captures radiated heat and warms the Earth. Manmade carbon dioxide can warm the Earth catastrophically. This position is based on

Richard Lindzen

According to this theory, carbon dioxide does capture radiated heat and does warm the Earth, but the warming is very small and not catastrophic. This position is based on

Mukesh Prasad

According to this theory, carbon dioxide is not capturing radiated heat and is not warming the Earth at all. Warming due to carbon dioxide is zero. This position is based on