25 Years of Satellite Data Uncover Alarming Error in Sea Level Measurements

T he Earth is changing in ways that could cause an actual mass extinction during our lifetimes. In recent years, scientists have made it abundantly clear that humans are driving climate change , but what they’ve only recently found out is how quickly we’re making the Earth more inhospitable. In a new study published Monday in Proceedings of the National Academy of Sciences, they report that the rate at which the climate getting worse is actually increasing each year. In the paper , a team of climate researchers shows evidence that global sea levels are rising at an accelerating rate. Scientists previously thought that sea level rise was constant at 3 millimeters per year or even slowing, but this new study, first-authored by R. Steven Nerem , associate director of the Colorado Center for Astrodynamics Research, shows that the annual global average sea level rise has increased by about 0.08...
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Ozone layer continues to thin over Earth's populated areas

The ozone hole reached its largest size of the year on Oct. 2, 2015. (Photo: NASA) The ozone layer that protects us from harmful ultraviolet radiation continues to thin over populated areas of the world, a new study warns. Scientists say the layer is in better shape, however, over the North and South Poles. Ozone has been declining globally since the 1980s. While the banning of the chloroflourocarbons that cause the thinning is leading to a recovery at the poles, "the same does not appear to be true for the lower latitudes," study author Joanna Haigh of Imperial College in London said. Located in the stratosphere, the ozone layer blocks potentially harmful ultraviolet energy from reaching our planet's surface. Without it, humans and animals could experience increased rates of skin cancer and other ailments.  Scientists first discovered the dramatic thinning in Earth's protective sheet in the 1970s and determined the production...
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Earth's Greatest Extinction Event May Have Been Caused by Thinning Ozone

T he end-Permian extinction, also known as the Permian-Triassic extinction, is one of the greatest mysteries in the Earth’s entire history. Sure, the Cretaceous-Tertiary extinction event, the one that (almost) wiped out all the dinosaurs , was bad, but it pales in comparison to the end-Permian extinction event . This mass extinction event, which began about 251.9 million years ago, wiped out over 90 percent of marine species and more than two-thirds of terrestrial species in about 500 thousand years. But aside from the theory that a massive volcanic eruption probably set this extinction event in motion, scientists don’t have a totally clear idea of what really happened on Earth during this event. Some tiny grains of evidence could change that, though. In a paper published Wednesday in the journal Science Advances, researchers from the Department of Integrative Biology and Museum of Paleontology at the University of California, Berkeley, provide...
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11 reasons to avoid supermarket seafood

Supermarkets may be convenient, but they just aren't the best place to shop for meat . And they may not be the best place to purchase seafood, either. Buy it from a reputable fishmonger if possible. If you don't live near a fishmonger, however, the supermarket seafood is probably safe. 11 Reasons to Avoid Supermarket Seafood Gallery We simply want to raise your awareness of a few factors that might influence your buying choices. We understand if you have no other option than to buy your fish at the supermarket; not everyone lives a short distance from a full-on fish market with knowledgeable fishmongers at the ready. The best consumer is an educated one, and when it comes to seafood, it pays to be educated. Do some research into the fish you're buying, and make your decisions based on what's sustainable, how it's caught or farmed, where it's from, and...
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