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Tag: footprint

Bitcoin, Las Vegas have the same size carbon footprint

Bitcoin, Las Vegas have the same size carbon footprint

Science
June 13 (UPI) -- The latest audit of Bitcoin's carbon footprint suggests the digital currency is responsible for 22 megatons of CO2 emissions annually. Bitcoin's carbon footprint, according to the new study, is roughly the same size as the carbon footprint of cities like Las Vegas and Hamburg, Germany. Bitcoin is mined by specialized computers. Bitcoin "miners" solve computational problems to link together, or "chain," blocks of transactions. Miners are rewarded for their work, while the process ensures the security of the Bitcoin system. To estimate Bitcoin's carbon footprint, researchers at the Technical University of Munich surveyed a variety of Bitcoin-related data, including the IP addresses of miners and the IPO filings of hardware manufacturers used for mining computers. Bitcoin ...
Thawing permafrost leaves traceable carbon footprint in Arctic rivers

Thawing permafrost leaves traceable carbon footprint in Arctic rivers

Science
May 7 (UPI) -- Researchers have found a way to measure the carbon released into Arctic rivers by thawing permafrost. Carbon is everywhere. It is also often on the move. But some carbon sources are sneakier than others. To better understand the planet's carbon budget and its influence on climate change, scientists must develop ways to more accurately track some of this sneaky carbon. When permafrost thaws, ancient carbon, sometimes frozen for hundreds of thousands of years, is freed up. As the planet continues to warm, more and more of this frozen carbon is escaping. But measuring this climate-carbon feedback is difficult. To better track the phenomena, scientists at Stockholm University decided to measure the radiocarbon signal of runaway carbon in large rivers. "Rivers transport carbon ...
Germany's E.ON wants even bigger wind footprint

Germany's E.ON wants even bigger wind footprint

Business
May 7 (UPI) -- German utility E.ON said it will build up its wind energy portfolio by taking over the domestic activities of wind-power company Vortex Energy.E.ON said it's targeting a takeover of the German activities of Vortex. E.ON takes 30 employees from the company, though non-German activities of Vortex are not part of the transaction.Germany has one of the greener economies in Europe and E.ON said it was retooling in the domestic landscape as the country emerges as a regional leader in renewable energy development. Vortex has 300 megawatts of wind power development in its immediate portfolio and much more in early-stage development.Both companies said the agreement is a win-win."Vortex Energy sees the acquisition by E.ON Climate & Renewables as the ideal opportunity to successfully ...