Between over-fishing and habitat destruction, the oceans may be on the brink of their own extinction catastrophe.

Kumi Naidoo is passionate about standing up for a sustainable world, even when what's required is "extremely scary."

Increasingly grim economic pressures, growing popular resistance and the efforts of government regulators have all shocked the energy industry.

Explore The Guardian's interactive visualization of the guiltiest parties.

Extremes of both hot and cold temperatures across the planet are increasing faster than previously believed.

A new generation turns an ancient idea into a crusade to save the future.

The Arctic is warming twice as fast as the rest of the Earth.

Heartening news about alternative energy and the growth of climate activism exists in the shadow of terrible predictions on climate change.

There's a full year of difficult negotiations ahead.

“While not every traditional variety tastes great or looks great, its genetics may be invaluable 50 or 100 years from now when the climate is different.”