Alaska's orange rivers are more metallic than acid mine drainage

The bright orange plumes of water scientists first noticed billowing across a river in Alaska's Brooks Range in 2018 were even more acidic and metallic than water leached from metal mines, despite their pristine surroundings. ...

Why a healthy seafloor matters for the Earth system

The seafloor is more than just the ground beneath the sea. Two-thirds of Earth's surface is covered by oceans, which have an average depth of almost 4 kilometers (2.5 miles). For a long time, the seafloor's remoteness protected ...

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