By studying the Chicxulub crater associated with the extinction of more than 75% of species then on Earth, researchers have begun to fill in a timeline for life’s rebound after the cataclysm.
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Boiled or Raw, Snail Shells Keep an Environmental Archive
Snail shells discovered at archaeological sites might still accurately record past weather and vegetation despite being the leftovers of a past meal.
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Focus on Climate Solutions, Panelists Say
Time remains to prevent dangerous climate change if people take action now and don’t lose hope, climate experts said.
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Threatened Sea Turtles in Hawaii Losing Ground to Rising Oceans
By midcentury, the Hawaiian green sea turtle could lose nesting beaches of increasing importance on Oahu, the most populous island in the chain.
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Airborne Surveys Examine Water Levels of Lakes Perched on Permafrost
Do water levels in high-latitude Canadian lakes fluctuate as one body or as separate entities? The answer could reveal clues to how melting permafrost influences the environment.
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Eyes in the Sky Look Closer at Under-Surveyed Northern Forests
Spaceborne images give scientists a detailed picture of the boreal forests’ tree heights, which help scientists estimate their contribution to carbon budgets.
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Weight of Water Dropped by Hurricane Harvey Flexed Earth’s Crust
The precipitation that fell during the storm depressed the ground in parts of Texas, Louisiana, Arkansas, and Mississippi by as much as 1.8 centimeters in some places.
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Southern Europe’s Groundwater Use Will Become Unsustainable
Even places without groundwater problems now will face water shortages by the 2040s if climate change continues on its current trajectory.
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Arctic Is Experiencing a Warmer “New Normal,” NOAA Reports
The acting head of the National Oceanic and Atmospheric Administration, Timothy Gallaudet, says the Trump administration is addressing the findings of the agency’s latest annual update on the Arctic.
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Sea Level Rise May Swamp Many Coastal U.S. Sewage Plants
Cities typically build wastewater treatment facilities in low-lying areas. A new national study identifies which plants are most vulnerable to coastal flooding.