Human contribution to climate change remains questionable

The principal focus of climate science is certainly atmospheric science and meteorology, but the subject involves many other areas of the Earth sciences as well as different disciplines, such as physics, chemistry and even biology. This complexity makes climate science both fascinating and controversial. It also undergoes rapid change as new facts and analyses emerge. Yet public interest in the possibility that human activities can change climate has become so intense that far-reaching policies are instituted even before final judgments are possible.

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