Snowfall in deserts is mainly the result of sharp temperature swings. Many deserts lie far from oceans or are located at high ...

For decades, scientists have puzzled over why Earth stayed warm and alive while Mars turned cold and dry. Both planets began with similar ingredients—rocky surfaces, carbon, water, and sunlight—but ...

Our planet is more unpredictable and more fascinating than most of us imagine. Most countries have one dominant climate, ...

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet Earth. When we think about isolation in nature, we usually picture islands ...