The Totten Glacier is one of the fastest-flowing and largest glaciers in Antarctica with scientists keen to keep a close eye on how it melts given the enormous amount of water it could potentially unleash. Using artificially created seismic waves that help scientists see through the ice, researchers have discovered that more of the Totten Glacier floats on the ocean than initially thought. “In some locations we thought were grounded, we detected the ocean below indicating that the glacier is in fact floating,” said Paul Winberry from Central Washington University, who spent the summer in Antarctica studying the Totten. The findings are important because recent studies have shown the Totten Glacier’s underbelly is already being eroded by warm, salty sea water flowing hundreds of kilometres inland after passing through underwater “gateways”. As it does, the portion of the glacier resting on water rather than rock increases, accelerating the pace of...
Surfing, boating, long walks on the beach - yes, we love our oceans. And yet, we treat them horribly, even though we need them to survive. DW takes a closer look at the five biggest man-made threats to these massive bodies of water - and why we should try desperately to save the oceans while we still have a chance. 1. Depleted fish stocks Eating fish and seafood is good for our health and many people worldwide, particularly in low-income countries, rely on these important sources of protein. In the past, the number of fish and other sea creatures caught by humans could be replenished through natural reproduction. Today, however, we take out more than what nature can deliver. According to the UN's Food and Agriculture Organization (FAO), humans extracted more than 81 million tons of fish and seafood from the oceans in 2015, an increase of 1.7 percent compared to 2014. Around 30 percent of global fish...
Come in, the water's just fine! Okay, you won't be hearing any alligators saying that, but as these amazing images show, these restricted reptiles are taking the cold snap in their stride – even if their swampy home has transformed into a glittering prison of ice. Like snorkelers who picked a particularly bad time to take a dip, these alligators at Shallotte River Swamp Park in North Carolina are trapped in frozen waters – and in these hostile, icy conditions, an ancient survival mechanism is kicking in. Ordinarily, these alligators would be spending their time sun-bathing or resting along the bottom of their swamp, but in a video captured by staff at the Swamp Park, we can see the animals adopting a very different pose on account of the punishing cold spell currently blasting the US . (Swamp Park/YouTube) What they're doing is called brumation , which is similar...
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#Plastic is one of the most enduring materials we make; it takes an estimated 500 to 1,000 years for it to #degrade, but 50 percent of the plastic we produce is used once and then thrown away. Eight million tons of plastic ends up in the #ocean every year. #oceandebris #plasticpollution #sustainability #goblu3
Facts like this are plentiful, but you get the idea. So, a call to arms. Here are some very easy things to give up in order to curb your contribution to the problem.
#Scubadivers may be more aware of the threats facing #sharks — but we also feel helpless about what we can do. It’s a sobering statistic: Up to 25 percent of the world’s sharks and rays are threatened with #extinction, according to the #IUCN #SharkSpecialistGroup (SSG). Using the #IUCNRedList of #ThreatenedSpecies criteria, the SSG says that of the 1,041 species assessed, 107 rays and 74 sharks are classified as threatened.