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Mining ancient ores for clues to early life

Published: 10 December 2012

An analysis of sulfide ore deposits from one of the world鈥檚 richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were...

Aerosol emissions in East Asia driven by consumption in developed countries

Published: 6 September 2016

Much of the influence on climate from air pollution in East Asia is driven by consumption in the developed countries of Western Europe and North America, according to research co-led by 看片视频...

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