Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

Wildfires are an increasing concern across most of the Southwestern United States and many other parts of the world — but scientists have made an encouraging discovery, with insights about how ...

Episodic precipitation pulses are important for driving biological activity in desert ecosystems. The pattern of precipitation, including the size of rain events and the duration of time between ...