Earth's Seasons

Winter weather can come with a slew of health risks, ranging from heart problems to injuries from slips and falls.

Scientists investigate icy lakes to track the growth of certain types of algae and zooplankton that thrive during the cold season, blooming under the lake's icy cover.

Under surface ice in frozen freshwater lakes, certain forms of life are far more active than scientists suspected.

The best place to stock up on ammo for an epic snowball fight may be a beach in Siberia.

Summer heat can be dangerous for pets, but there are a number of steps that owners can take to keep their pets safe when temperatures climb.

A note to summer bartenders: Limes and sunlight don't mix.

It may smell nice and go on smoothly, but does your sunscreen actually protect you from the sun?

For some animals, hunkering down in a cozy den when nights are long and temperatures are low is not just a matter of temporary comfort — it's necessary for survival.

It's looking like a hot summer this year for much of the United States.