Biologists say the majestic swimmers' "pump" mechanism filters the oceans of carbon.
As CO2 levels rise, coral-reef fish seem to lose the ability to recognize each other.
The warming climate is predicted to bring punishing rainstorms.
As everyone on the East Coast complains about the cold, it's important to keep in the mind that the rest of the world is really quite warm.
Torrential downpours and abnormal heat could kill nearly half of penguin chicks in a single year, say researchers.
There are roughly 100 blazes popping in southeastern Australia, making the sky almost as black as night.
A new NASA map of the planet lays out the depressing geographies of smog and premature death.
El Paso's drier than an cow bone baking in the Chihuahuan Desert, and an important source of water for drinking and farming has shrunk into a sandy puddle.
American cities could see many more hot-weather fatalities in the decades to come, as climate change drives longer and more frequent heat waves.