Changes

'''Global warming''' is a phrase which commonly refers to a scientific theory and to political proposals that follow if the theory is accepted. The phrase really includes three separate theories:

'''Global warming''' is a phrase which commonly refers to a scientific theory and to political proposals that follow if the theory is accepted. The scientific theory is widely but not universally accepted within the scientific community. Portions are challenged, particularly by conservatives who are opposed to the political proposals that flow from acceptance of the theory and are thus properly skeptical of the motivations of the theorists. The phrase really includes three separate theories.

:1) The theory that we are currently in a period of rapid climate change consisting of increasing temperature, which, if it were to continue, would have important socio-economic consequences well within the next century.  

:1) The theory that we are currently in a period of rapid climate change consisting of increasing temperature, which, if it were to continue, would have important socio-economic consequences well within the next century.  

:2) The theory that this change is caused by increasing CO₂ gasses and a resulting "greenhouse" effect.

:2) The theory that this change is caused by increasing CO₂ gasses and a resulting "greenhouse" effect.