Marlene Cimons/Nexus Media

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The melting Arctic gives scientists valuable access to long-dead viruses

The melting Arctic gives scientists valuable access to long-dead viruses

These images show some of the coolest designs to keep floodwaters at bay

These images show some of the coolest designs to keep floodwaters at bay

California’s trees could shift as global warming forces birds to move out

California’s trees could shift as global warming forces birds to move out

Scientists have found an unlikely ally in the fight to save coral reefs

Scientists have found an unlikely ally in the fight to save coral reefs

Island trees can't run from climate change

Island trees can't run from climate change

This cheap smartphone sensor could help you tell if old food is safe to eat

This cheap smartphone sensor could help you tell if old food is safe to eat