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The long fight against climate change deniers
When climate scientist Peter Stott checked into his flight from London to Moscow in July 2004, his excitement gave way to shock when a colleague explained their agreed schedule had been ripped up.
Related Knowledge Center: Climate science
State of Play
What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.