Earth science – Page 11
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Feature
High hopes for shale
Shale gas has given the US petrochemicals industry a much needed boost – will it do the same for the rest of the world?
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FeatureCritical thinking
As our supply of some essential elements dries up, it's time to start urban mining. Emma Davies reports
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FeatureTreasures from the deep
Mining companies are exploring underwater volcanic vents, hoping to extract metals such as gold and copper. Victoria Gill looks at the technical, environmental and political hurdles
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NewsBacteria ruled the world billions of years ago in purple oceans
Evidence backing a controversial sulfur-rich model of the Earth's oceans 1.8 billion years ago has been uncovered in molecular fossils.