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This Hot Summer Is One of the Coolest of the Rest of Our Lives

Scientific American · Andrea Thompson · last updated

Extreme heat has been a constant in the news this past summer: In July a punishing heat wave in Europe pushed temperatures across parts of the U.K. above 104 degrees Fahrenheit (40 degrees Celsius) for the first time in history.

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. 

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