Last year was the second-hottest worldwide on record, just behind a sweltering 2016, with signs of climate change ranging from wildfires to a thaw of Arctic ice, a European Union monitoring center said on Thursday.
The Copernicus Climate Change Service, the first major international weather agency to report on conditions in 2017, said temperatures averaged 14.7 degrees Celsius (58.46 Fahrenheit) at the Earth's surface — 1.2 C (2.2 F) above preindustrial times.
Last year was slightly "cooler than the warmest year on record, 2016, and warmer than the previous second warmest year, 2015," it said. Temperature records date back to the late 19th century.
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