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2015 Officially the Hottest Year on Record

The final tally is in: 2015 was the hottest year in recorded history—by a record-breaking margin. On Wednesday, NASA and the National Oceanic and Atmospheric Administration (NOAA) announced the official record for last year’s runaway temperatures, which by NOAA’s calculation hit an average of 58.62 degrees Fahrenheit (14.79 degrees Celsius). That’s 1.62 (F) degrees hotter than any average year in …

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Alex Kirby – Warming lakes speed up methane emissions

US scientists report that lakes worldwide are warming by an average of more than 1°C every 30 years, faster than the warming rate of either the ocean or the atmosphere. The warming is expected to increase algal blooms and to mean global emissions of methane, a greenhouse gas 25 times more potent than carbon dioxide over a century, will increase …