The appearance of oxygen in Earth's atmosphere was a turning point in the history of our planet, forever transforming the environment and setting the stage for complex life. This event, known as the ...

Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet ...

BOULDER, Colorado — Researchers are calling for increased attention and better protection against the rising introduction of exotic materials into Earth’s atmosphere from satellite and space hardware ...

Introduction / John S. Dryzek, David Scholsberg -- pt. 1. Feast or famine? : the severity of environmental problems -- section I. Limits and survivalism -- 1. The nature of exponential growth / ...