比特币：热闹背后的能源足迹
呼风唤雨的比特币背后是默默无闻的发电厂，被寄予厚望的区块链技术有着怎样的环境影响？
Is blockchain energy use sustainable?
As virtual ledgers move beyond the realm of cryptocurrencies, curbing power use will be key, writes Jan McGirk
主题 Topics » 科学与技术 Science & Tech
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清洁技术革命必须摆脱破坏性采矿
清洁能源不可或缺的“技术金属”，其生产过程隐含着惊心动魄的环境和社会正义问题，朱莉·科林格写道。
The clean tech revolution must start with mining
Recycling and recovering rare earth metals could limit the social and environmental costs of destructive mining, writes Julie Klinger
特高压输电：热潮后的冷思考
特高压线路曾经被奉为远距离电力输送的成功解决方案，而如今中国在这方面的热情开始减退，埃德蒙·唐尼写道。
Sparks fly over ultra-high voltage power lines
Celebrated as the answer to long-distance electricity transmission, China’s enthusiasm for UHV lines is weakening, writes Edmund Downie
没有浪费：中国的废物发电革命
利用污泥污水发电的时机已经成熟，中国城市应主动迎接挑战，吉利安·杜写道。
Nothing wasted: The waste-to-energy revolution in China
There’s a ripe opportunity to use sewage to produce energy if Chinese cities can meet the challenge, writes Jillian Du
