environment   112587

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Ditch the Batteries: Off-Grid Compressed Air Energy Storage - LOW-TECH MAGAZINE
Going off-grid? Think twice before you invest in a battery system. Compressed air energy storage is the sustainable and resilient alternative to batteries, with much longer life expectancy, lower life cycle costs, technical simplicity, and low maintenance. Designing a compressed air energy storage system that combines high efficiency with small storage size is not self-explanatory, but a growing number of researchers show that it can be done. Compressed Air Energy Storage (CAES) is u...
electricity  air  energy  diy  alternative_energy  engineering  environment  grid  offgrid  pv 
yesterday by xer0x
Bitcoin’s stupendous power waste is green, apparently — bad excuses for Proof-of-Work | Attack of the 50 Foot Blockchain

Thus, Bitcoin is anti-efficient — the more bitcoin is used, the fewer transactions it can process per watt-hour. Bitcoin currently uses 300kWh per transaction, and by the end of 2018 this will be 900kWh — for the same two to four transactions per second.
bitcoin  environment  stupid 
2 days ago by drewish
Oak Spring Garden Foundation, Stacy Lloyd III Fellowship for Bibliographic Study
Oak Spring Garden Foundation will award one Stacy Lloyd III Fellowship for Bibliographic Study of $10,000 for a two-month fellowship. The aim of the program is to support an outstanding early-career scholar who wishes to use the Oak Spring Garden Library collection in his/her bibliographic research in some area related to plants, gardens and landscapes, and who can articulate the likely contributions of the Oak Spring Garden Library collections to the fulfillment of his/her research objectives.
Environment  ecology  Library  Fellowship  alumni 
2 days ago by risdgrants
Environmentalists criticize Xiaomi ahead of billion-dollar IPO • Sixth Tone
Sixth Tone:
<p>Two environmental groups are accusing Xiaomi of poor oversight of its supply chain after the Chinese tech giant earlier this month filed for an IPO with the Hong Kong Stock Exchange, according to a joint report released Tuesday.

On May 12, the environmentalists found that a Jiangsu factory which manufactures components for Xiaomi was discharging copper-contaminated wastewater into a nearby river. According to the report, coauthored by the Institute of Public and Environmental Affairs (IPE) and the Lüse Jiangnan Public Environment Concerned Center (PECC), tests conducted on May 12 confirmed the contamination.

The factory, owned by Taiwan-headquartered Ichia Technologies, had previously been fined 117,000 yuan ($18,000) by the provincial environmental bureau in March for the same offense. Sixth Tone’s calls to the factory went unanswered on Tuesday.

The report also accuses four other companies said to manufacture screens, casings, and other parts for Xiaomi cellphones of having past environmental violations.

On May 3, Xiaomi filed for an IPO on the Hong Kong Stock Exchange, aiming for a $100 billion valuation that would make it the largest listing of the year. But the environmental groups say that the tech company did not disclose the supply chain environmental lapses in its prospectus — contravening the exchange’s full disclosure requirement.

When reached by phone on Tuesday, a Xiaomi PR representative told Sixth Tone that he was not at liberty to comment, as the company was still ascertaining the situation.</p>

By "still ascertaining the situation" the spokesman meant "still ignoring the situation, which has been brought to Xiaomi's notice multiple times over multiple suppliers in the past four years".

But nobody much cares about environmental responsibility, unless it offers a chance to bash Apple.
Xiaomi  environment 
2 days ago by charlesarthur

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