How to make edible utensils that you can eat after you use (VIDEO)

April 4, 2016 by  
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Great Barrier Reef coral bleaching is now more widespread than ever

April 4, 2016 by  
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New research, backed up by troubling photographic evidence, shows that coral bleaching is now more prevalent in Australia’s Great Barrier Reef than ever before . Bleaching occurs when ocean temperatures rise and coral evicts the algae that give the reef its typically colorful appearance. Underwater observations suggest the problem is increasing, and upcoming aerial surveys will offer an even better view of how far the coral bleaching has spread in the northern part of the reef. Read the rest of Great Barrier Reef coral bleaching is now more widespread than ever

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One of the world’s greenest buildings 14 feet above sea level prepares for climate change

April 4, 2016 by  
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Power-hungry Bitcoin could consume as much energy as Denmark by 2020

April 4, 2016 by  
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The value of Bitcoin has fluctuated widely since the pioneering cryptocurrency’s debut in 2009. Middling at less than $20 for much of its early tenure, Bitcoin soared to an all-time high of $979.45 in December 2013 before fluctuating approximately between $200 and $400 over the past year. However, Bitcoin’s true costs are hidden in this traditional market valuation. In order to obtain Bitcoins, one must “mine” them using a computer rig, and these high-performance computers have high energy needs. One analysis of the cryptocurrency projects that by 2020, global Bitcoin mining could consume as much electricity as the entire country of Denmark . Bitcoin is a peer-to-peer currency that can be transferred between individuals without a governing body or bank acting as intermediary. A program incorporates the value and present circulation of coins to steadily generate new Bitcoins. As the currency has aged, the mining of new Bitcoins has grown more energy intensive. The current extraction rate of Bitcoins uses approximately 350 megawatts, enough to power 280,000 American homes. Current Bitcoin demand also requires a mining network infrastructure that weighs over 10,000 metric tons. Related: South American Plastic Banks Turn Pollution into Currency Environmental researcher and Bitcoin enthusiast Sebastian Deetman has explored the future growth of Bitcoin and how it might affect future energy use. He said, “The results show that in an optimistic scenario, the increase in electricity consumption of the bitcoin network compared to now is not shocking, from around 350 MW to around 417 MW, but still on the order of one small power station.” If his pessimistic projections hold true, the difference in power use would be drastic. “Even in the optimistic scenario, just mining one bitcoin in 2020 would require a shocking 5,500 kWh, or about half the annual electricity consumption of an American household,” says Deetman. “I haven’t given up on the idea of distributed network transactions, but a radical rethinking of how these may be secured would be beneficial, be it at least for the environment.” Solar-powered Bitcoin farm: a worthy investment? Via Vice Motherboard Images via Zach Copley/Flickr  and  Mirko Tobias Schäfer/Flickr

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100% waterproof Levitat tree tent for three fits in your carry-on luggage

April 4, 2016 by  
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