Global Warming

The Earth has warmed up by about 0.6C in the last 100 years. During this period, man-made emissions of greenhouse gases have increased, largely as a result of the burning of fossil fuels and deforestation. In the last 20 years, concern has grown that these two phenomena are, at least in part, associated with each other. That is to say, global warming is now considered most probably to be due to the enhanced greenhouse effect.