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 ...

Inside a bold — and controversial — effort to cool the water around this beloved ecosystem. An Australian research vessel testing a localized form of climate engineering — artificial modification of ...

A green sea turtle near Lady Elliot Island. We were 10,000 feet above the Pacific, in a tiny Cessna that seemed like it should have been flying much lower than that, when the clouds cleared and Lady ...

MELBOURNE, Australia — The Great Barrier Reef has experienced its greatest annual loss of live coral across most of its expanse in four decades of record-keeping, Australian authorities say. But due ...