Megadrought may grip the Southwest

Megadrought

The Southwest and central Great Plains are likely to be hit in coming decades by the most prolonged megadrought in more than 1,000 years, a new climate study predicts. Scientists from NASA, Columbia University, and Cornell University created a long-term climate model after analyzing historical temperature records, carbon dioxide emissions, and drought trends from tree rings.The record shows that the […]

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Reef madness

It seemed like a good idea at the time. In 1972, Broward County, Fla., organized more than 100 boats to dump an estimated 700,000 tires into the Atlantic Ocean in hopes of sparking the growth of an artificial reef. Ultimately corals never grew on the bundles of tires, and over time the bundles became loose, causing damage to nearby natural […]

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Impact of human activity on local climate mapped

Earth’s temperature has increased by 1°C over the past century, and most of this warming has been caused by carbon dioxide emissions. But what does that mean locally? A new study published in Nature Climate Change pinpoints the temperature increases caused by CO2 emissions in different regions around the world. Using simulation results from 12 global climate models, Damon Matthews, […]

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Warming adds to pressure on bats

Across the world, bats are in trouble from climate change – not only through collisions with the wind turbines that are intended to mitigate its effects, but from what the increasing warmth does to their ability to find their prey. Bats often get a bad press, portrayed as disease-spreading bloodsuckers. In fact, they perform a vital role as pollinators, seed […]

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Planet Has More Trees

Planet Has More Trees

The last study showed that the world has about 3 trillion trees.  That is over the estimate of 400 billion in previous studies.  Researchers did a count by actually going out and physically counting trees, using satellite imagery, ground survey, and national forest inventories.  Even though we have lost trees from fires, drought, and insect outbreaks there are still more […]

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