Extreme marine heat is the "new normal" for oceans, study finds
150 years of data, collected since 1870, shows that heat extremes are now widespread in our oceans — and delicate ecosystems may be at risk of collapse.
Coral Reef
"Magical" coral reef discovered in Tahiti
Researchers have discovered one of the largest coral reefs on record — more than 100 feet underneath the Pacific Ocean near the Tahiti islands. One diver compared it to the work of a "great seamstress," and said "it was like a work of art."
Climate change impacting Florida ecosystems
Warming waters and pollutants are destroying the habitats of manatees, fish and coral in and around the state of Florida. CBS News meteorologist and climate specialist Jeff Berardelli went to Florida to investigate the dilemma and see what scientists and activists are doing to try to stop it.
"Bizarre" coral reef sounds offer hope of recovery after destruction
Scientists say there's now hope that reefs previously destroyed by fishermen using explosives to kill massive amounts of fish can be restored.
UNESCO's World Heritage Sites: Protecting the world's treasures
For nearly 50 years the United Nations Educational, Scientific and Cultural Organization has listed outstanding natural and man-made sites as culturally significant locations worthy of protection. But what does designation as a World Heritage Site actually mean for a glacier or coral reef, or a landmark like the Taj Mahal? Correspondent Conor Knighton treks for answers.
Australia's Great Barrier Reef status lowered to "critical"
The world's largest coral reef is now in "critical" condition — the most urgent designated status.
Massive coral reef discovered off Australia
A coral reef taller than New York City's Empire State Building has been discovered off the coast of Australia. The first discovery of its kind in over 120 years, scientists say the reef is more than 1,600 feet tall. It was discovered by scientists conducting a year-long search of the ocean surrounding Australia.
Coral reef taller than Empire State Building found off Australia
It's the first to be discovered in over 120 years.
Dying coral reefs turn vibrant neon in apparent survival effort
Coral reefs on the brink of death are attempting to send a survival signal, via fluorescent neon colors.
Lab-spawned coral may save "America's great barrier reef"
Much of the coral in the 10,000-year-old Florida reef has been lost due to climate change, disease and pollution — now scientists may have a way to help save it.
Climate change could wipe out coral reef habitats in decades
"By 2100, it's looking quite grim," the lead researcher said.
Floridians are fighting over sunscreen bans
Environmentalists say chemicals destroy coral reefs that support tourism, but some state lawmakers see skin cancer danger.
Damaged coral reefs could be restored using underwater loudspeakers
Scientists played vibrant sounds of healthy coral to attract young fish - a practice that could be used to revive coral reefs globally
Australia downgrades outlook for Great Barrier Reef over warming
Government agency changes health prognosis for world's biggest reef from "poor" to "very poor" as world's oceans warm up
Nature up close: Cancun reefs and Sargassum
Changes in the Gulf of Mexico are an indication of how human activities in one area can negatively affect organisms thousands of miles away
Global warming threatens coral reef recovery
"We used to think that the Great Barrier Reef was too big to fail – until now"
Scientists use mini-satellites in effort to save coral reefs
Until now, scientists have had to visit individual reefs to monitor their health
Oceans have absorbed more heat than previously thought, study finds
Heat absorbed by Earth's oceans leads to coral bleaching and contributes to sea level rise
Vets on a new mission to save the coral reef damaged by hurricanes
The "Force Blue" dive team is made up of former Marines and Navy SEALs
Hawaii set to ban sunscreens harmful to coral reefs
Hawaii lawmakers voted to become the first state to ban the sale of sunscreens containing chemicals believed to be harmful to marine life
Nature up close: Filming on coral reefs
Videographer Ziggy Livnat dives into the Luis Peña Channel Nature Reserve off Culebra, the first designated "no-take" marine protected area in Puerto Rico
Hawaii mulls banning some sunscreens to protect coral reefs
Big Island's pristine coastline is home to one of the state's largest coral reefs, but scientists say it's dying at an alarming rate
Divers taught underwater gardening to save Florida's coral reef
Expert says due to climate change, the beauty of the only tropical reef system in the continental U.S. is vanishing
War on global warming only way to save world's coral, study says
Scores of brilliantly colored coral reefs once teeming with life have in recent years become desolate, white graveyards
Amazing Amazon Reef
A Greenpeace expedition to the Amazon returned with the first-ever underwater photos of this vibrant coral reef
California couple at center of surrogacy scandal arrested
Live
Iran's Houthi allies deny losing ground as Mideast crisis engulfs Yemen
Investigation
The life and travels of an alleged Chinese agent in the U.S.
Eva Marie Saint, "North by Northwest" star, dies at 102
Olympian accused of damaging Reflecting Pool seeks probe of potential misconduct
Christa Pike is conscious, speaking after botched execution, attorneys say
Ex-CIA official found with $40 million in gold bars admits to sprawling scheme
Exclusive
Former Cornell frat members ask university to clear their names
