Translating Uncle Sam

White-nose syndrome haunts bats

Are wildfires getting worse?

How does the flu work?

Interactive: Explore the surface of Mars

Are grizzly bears becoming unbearable?

U.S. pipelines at a crossroads

What are rare earth metals?

Floods: When water attacks

Up and atom: The comeback of nuclear power

Earthquakes: Finding fault with nature

What's killing all the coral?

Is organic food worth the cost?

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