Changes

'''Global warming''' is a theory accepted almost (but not entirely) within the scientific community, but widely debated outside it. The phrase is usually thought of as encompassing three concepts:

'''Global warming''' is a theory widely (but not universally) accepted within the scientific community, but widely debated outside it. The phrase is usually thought of as encompassing three concepts:

:1) 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) 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 change is caused by increasing CO₂ gasses and a resulting "greenhouse" effect.

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