Peggy’s data were a bit of a shock.From an anchored vantage point in an expanse of the southeastern Bering Sea west of Alaska, Peggy, or mooring M2, had monitored conditions in the water for 25 years. A line of sensors extended down more than 70 meters to where Peggy was tethered to the seafloor, collecting information on temperature, salinity and other properties of the water.Most years, the waxing and waning of floating sea ice follows a consistent seasonal pattern that is reflected in Peggy’s data. By November, sea ice migrates in through the Bering Strait or forms in some parts of the Bering Sea. As a by-product of the sea ice formation, a large mass of cold, salty water begins to pool near the seafloor. In the spring, phytoplankton bloom, and by early summer, the sea ice begins to melt away. The cold pool, however, lingers through the summer. With an average temperature just below zero degrees Celsius — a few degrees colder than the surrounding water — … [Read more...] about What happens when the Bering Sea’s ice disappears?
Polar bear fur
A-list actress and comedian Tiffany Haddish created a stir over the weekend after announcing that she will protest law enforcement “killing black people” by continuing to wear fur, garnering scorn and praise from fellow African-American entertainers. “I’mma wear it as much as possible. I don’t know if you guys know this about me, but I’m about to start protesting,” Tiffany Haddish said in a video posted to Instagram Sunday. “I’mma wear fur every day until they stop killing black people. When the police stop killing black people, I’ll stop wearing fur. It’s my new protest. So sorry, PETA! Don’t be mad at me. Be mad at the police. When they stop killing black people, I’ll stop wearing fur… Because people are important, and so are the animals.”Hip-hop mogul and longtime vegan Russell Simmons criticized Haddish, writing in the video’s comment section: “White supremacy is a … [Read more...] about Tiffany Haddish: I Will Wear Fur Everyday Until ‘Police Stop Killing Black People’
By Sara Miller and Jeanna Bryner, Live Science | December 30, 2018 08:53am ET Credit: Jonathan Nimerfroh/jdnphotography.com Slurpee waves The cold that gripped the U.S. East Coast this past winter created a gorgeous phenomenon along the coast of Nantucket, Massachusetts — slurpee waves. As if frozen mid-break, these waves were surfable, according to photographer and surfer Jonathan Nimerfroh, who captured the surreal photos. Credit: NASA/NOAA GOES Project/Twitter Bomb cyclone A rotating winter storm that churned its way across the U.S. East Coast in January made for some stunning satellite images, like this one captured by the National Oceanic and Atmospheric Administration's GOES-East satellite. The storm was also an opportunity to learn about a phenomenon described by some pretty cool words — bomb cyclone and .... wait for it, bombogenesis. A bomb cyclone occurs when the atmospheric pressure inside a weather system drops rapidly, causing that … [Read more...] about 100 Best Science Photos of 2018
Home Features Life Feature 18 December 2018 Once more common than brown bears, cave bears didn't survive the last ice age. Could their sad end be down to their diet, or just to being bears of very little brain? By Chris BaraniukIF YOU go down underground today, look out for a big surprise. If you go into a cave, anyway, be sure to adjust your eyes. For many caves, in Europe at least, contain the remains of a curious beast. It’s not an olm or a bat that’s deceased – it’s a cave bear. Cave bears died out at least 24,000 years ago, but they were once very common. In fact, they left so many bones that during the first world war, they were used to provide phosphates for fertilisers and bombs. Plenty of skulls and skeletons still remain in caves across a swathe of Eurasia, from Spain to south-central Russia, and this treasure trove has allowed palaeontologists to piece together the bear’s story. We know, for … [Read more...] about The mysterious demise of Europe’s massive cave bears
In a broad swath of northwestern Alaska, small groups of recent immigrants are hard at work. Like many residents of this remote area, they’re living off the land. But these industrious foreigners are neither prospecting for gold nor trapping animals for their pelts. In fact, their own luxurious fur was once a hot commodity. Say hello to Castor canadensis, the American beaver.Much like humans, beavers can have an oversized effect on the landscape (SN: 8/4/18, p. 28). People who live near beaver habitat complain of downed trees and flooded land. But in areas populated mostly by critters, the effects can be positive. Beaver dams broaden and deepen small streams, forming new ponds and warming up local waters. Those beaver-built enhancements create or expand habitats hospitable to many other species — one of the main reasons that researchers refer to beavers as ecosystem engineers.Beavers’ tireless toils — to erect lodges that provide a … [Read more...] about Beavers are engineering a new Alaskan tundra