The Intergovernmental Panel on Climate Change fourth assessment report, published in 2007 came to a more confident assessment of the causes of... » More

The Intergovernmental Panel on Climate Change fourth assessment report,

published in 2007 came to a more confident assessment of the causes of global

temperature change than previous reports and concluded that ‘it is likely that

there has been significant anthropogenic warming over the past 50 years averaged

over each continent except Antarctica.’ Since then, warming over Antarctica has

also been attributed to human influence, and further evidence has accumulated

attributing a much wider range of climate changes to human activities. Such

changes are broadly consistent with theoretical understanding, and climate model

simulations, of how the planet is expected to respond. This paper reviews this

evidence from a regional perspective to reflect a growing interest in understanding

the regional effects of climate change, which can differ markedly across the

globe.

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