The evidence for human-induced climate change
Mike Hulme and Simon Torok
October 2001
Summary
The 2001 report by the Intergovernmental Panel for Climate Change, the body set up in 1988 to advise governments on the latest science of climate change, concluded that “most of the warming observed over the past 50 years is likely to have been due to the increase in greenhouse gas concentrations”.
The report reflects general agreement among scientists that, because the world’s growing population has led to an increase in activities such as burning fossil fuels and expanding agriculture and deforestation, the concentration of greenhouse gases in the atmosphere has grown significantly.
Most climate experts also believe that there is now sufficient scientific evidence to indicate that this process has had a detectable effect on the climate, and will continue to do so in future.
Evidence for the growth of greenhouse gas emissionsEvidence for global warming
What is causing global warming?
Mike Hulme and Simon Torok are, respectively, director and external communications manager at the Tyndall Centre for Climate Change Research, based at the University of East Anglia in the United Kingdom.
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