Definition. Theories are formulated to explain, predict, and understand phenomena and, in many cases, to challenge and extend existing knowledge within the limits of critical bounding assumptions.
Definition of hypothesis: A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Definition of scientific fact: In the most basic sense, a scientific fact is an objective and verifiable observation, in contrast with a hypothesis or theory, which is intended to explain or interpret facts. (From a NASA fact sheet on CO2 in the atmosphere.)
Scientific evidence of action of CO2 in causing warming of the climate system is unequivocal. The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century.
Burning (oxidation) of hydro carbon fuel produces heat, water vapour and CO2
How many ways do you guys need to have this explained to you before 'the penny drops"?