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Sunday, April 11, 2021
2020 ties 2016 as the warmest year on record

2020 ties 2016 as the warmest year on record

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Enlarge / Intense wildfires were one of the climate impacts linked to the recent string of very hot years. Today, NASA and NOAA are announcing that 2020 was one for the record books, tying with 2016 for the warmest year since we've been tracking temperatures. NASA rates 2020 as the warmest ever, although by a…
2020 and 2016 tie for the hottest years on record

2020 and 2016 tie for the hottest years on record

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2020 is in a “dead heat” with 2016 for the hottest year on record, scientists with NASA and the National Oceanic and Atmospheric Administration announced January 14. Based on ocean temperature data from buoys, floats and ships, as well as temperatures measured over land at weather stations around the globe, the U.S. agencies conducted independent…
Ocean acidification may make some species glow brighter

Ocean acidification may make some species glow brighter

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A more acidic ocean could give some species a glow-up. As the pH of the ocean decreases as a result of climate change, some bioluminescent organisms might get brighter, while others see their lights dim, scientists report January 2 at the virtual annual meeting of the Society for Integrative and Comparative Biology. Bioluminescence is de…
What the pandemic can teach us about ways to reduce air pollution

What the pandemic can teach us about ways to reduce air...

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The COVID-19 pandemic wasn’t just a shock to the human immune system. It was also a shock to the Earth system, dramatically changing the air quality in cities around the globe. As countries around the globe struggled to contain the disease, they imposed temporary shutdowns. Scientists are now sifting through data collected by satellite and…
Wildfires, heat waves and hurricanes broke all kinds of records in 2020

Wildfires, heat waves and hurricanes broke all kinds of records in...

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2020 was a year of unremitting extreme climate events, from heat waves to wildfires to hurricanes, many of which scientists have directly linked to human-caused climate change (SN: 8/27/20). Each event has taken a huge toll in lives lost and damages incurred. As of early October, the United States alone had weathered at least 16…
Once hurricanes make landfall, they’re lingering longer and staying stronger

Once hurricanes make landfall, they’re lingering longer and staying stronger

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Atlantic hurricanes are taking longer to weaken after making landfall than they did 50 years ago, thanks to climate change. Over the past 50 years, increasingly warm ocean waters have juiced up the storms, giving them more staying power after they roar ashore, scientists report in the Nov. 12 Nature. That could potentially extend storms’…
By 2100, Greenland will be losing ice at its fastest rate in 12,000 years

By 2100, Greenland will be losing ice at its fastest rate...

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By 2100, Greenland will be shedding ice faster than at any time in the past 12,000 years, scientists report October 1 in Nature. Since the 1990s, Greenland has shed its ice at an increasing rate (SN: 8/2/19). Meltwater from the island’s ice sheet now contributes about 0.7 millimeters per year to global sea level rise…
Global warming may lead to practically irreversible Antarctic melting

Global warming may lead to practically irreversible Antarctic melting

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How is melting a continent-sized ice sheet like stirring milk into coffee? Both are, for all practical purposes, irreversible. In a new study published in the Sept. 24 Nature, researchers outline a series of temperature-related tipping points for the Antarctic Ice Sheet. Once each tipping point is reached, changes to the ice sheet and subsequent melting can’t…
New maps show how warm water may reach Thwaites Glacier’s icy underbelly

New maps show how warm water may reach Thwaites Glacier’s icy...

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New seafloor maps reveal the first clear view of a system of channels that may be helping to hasten the demise of West Antarctica’s vulnerable Thwaites Glacier. The channels are deeper and more complex than previously thought, and may be funneling warm ocean water all the way to the underside of the glacier, melting it…
Bering Sea winter ice shrank to its lowest level in 5,500 years in 2018

Bering Sea winter ice shrank to its lowest level in 5,500...

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Sea ice in the Bering Sea, on the southern margin of the Arctic Ocean, dwindled to its smallest wintertime expanse in 5,500 years in 2018, new data show.   Summertime sea ice loss due to climate change has captured headlines, but winter ice in the region has also shown recent signs of decline. In both…

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