Migratory birds spread avian influenza to Greenland's polar bears

Migrating birds that breed in the Arctic are spreading avian influenza to polar bears in eastern Greenland, according to a new study that found evidence of infections in bear blood samples acquired from Greenland Inuit subsistence ...

Climate warming can slow how tree roots feed soil microbes

A plant's roots do much of their work out of sight, pulling in water and nutrients and holding the plant in place. That makes it hard to see how plants respond when conditions underground change, and how a warming climate ...

We're surprisingly close to conserving 30% of the world's land

In an effort to conserve the world's plants and animals, governments have pledged to conserve 30% of the planet by 2030. Official figures suggest that attempts to reach this target on land have stalled, but a new study led ...

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