Data courtesy World Wildlife Fund
Tundras and Ice Sheets
Arctic and alpine tundras are areas where trees grow sparsely due to a short growing season, low precipitation, strong winds, and in the case of alpine tundras, high altitude. Tundras are often found near permanent ice sheets where, during summer, the ice and snow recede to expose the ground and allow vegetation to grow.
Shop National Geographic
A Green Workplace
@NatGeoGreen on Twitter
Advertisement
-
Jane Goodall
Over the course of 50 years Jane has witnessed the lives of three generations of chimpanzees.
-
Explorer Moment
Ed Viesturs shares an early morning view from Everest.
National Geographic Magazine
-
Pollinators
They are the Earth’s pollinators. And they come in more than 200,000 shapes and sizes.
-
Age of Man
It’s a new name for a new geologic epoch—one defined by our own massive impact on the planet.
The World's Water
-
Help Save the Colorado River
NG's new Change the Course campaign launches. When individuals pledge to use less water in their own lives, our partners carry out restoration work in the Colorado River Basin.
-
Water Grabbers: A Global Rush on Freshwater
A special series on how grabbing water from poor people and future generations threatens global food security, environmental sustainability, and local cultures.