Articles on Corals

Displaying 1 - 20 of 107 articles

With deepening drought, worsened by El Niño, Panama Canal authorities cut the number of ships allowed to transit. Martin Bernetti/AFP via Getty Images

2026’s El Niño is shaping up to be a doozy – it’s already affecting global shipping, fish behavior and heat

El Niño can affect agriculture, marine life and economies in profound ways, including slowing commerce at the Panama Canal. This El Niño is likely to be the strongest in over a century.
A NOAA scientist takes a coral sample in the Galapagos Islands. The process does not injure the colony, which grows back. Atlantic Oceanographic and Meteorological Laboratory - NOAA

Galápagos corals show El Niño events are more extreme now than in past 1,000 years – here’s how my team made the discovery

Scientists went to the heart of the El Niño pattern to learn from living and fossil corals. The results show El Niño’s intensifying coincides with global warming.
A whitebark pine seedling grows in soil and deteriorating wood blackened by fire in Glacier National Park, Montana, in 2019. Chip Somodevilla/Getty Images

Life after death: From burned trees to bleached corals, how dead organisms live on as the building blocks of new life

The dead remains of foundation species can boost or deter how well future generations are able to grow and thrive.
A researcher checks on corals in Banco Chinchorro, off Quintana Roo, Mexico. Lorenzo Alvarez-Filip

Many of the Caribbean’s most important reefs are going unprotected

Healthy coral reefs can significantly reduce hurricane damage for coastlines, yet many still face harms, including pollution and ship damage, that people have the power to stop.
Healthy staghorn coral were crucial builders of Florida’s coral reef. Today, few survive there. Maya Gomez

2 iconic coral species are now functionally extinct off Florida, study finds – we witnessed the reef’s bleaching and devastation

The crucial reef-building corals were decimated by a marine heat wave in the Florida Keys. Can advances in restoration help them recover?
Meltwater runs across the Greenland ice sheet in rivers. The ice sheet is already losing mass and could soon reach a tipping point. Maria-José Viñas/NASA

What are climate tipping points? They sound scary, especially for ice sheets and oceans, but there’s still room for optimism

A report warns that coral reefs may have reached their tipping point, and ice sheets, ocean currents and the Amazon are at growing risk. But, what does that actually mean?
The coral reefs of Palmyra Atoll, part of Pacific Islands Heritage Marine National Monument, provide nurseries for many fish species. Andrew S. Wright/U.S. Fish and Wildlife Service via Flickr

Trump is stripping protections from marine protected areas – why that’s a problem for fishing’s future, and for whales, corals and other ocean life

America’s marine protected areas help fish populations thrive. Trump’s plan to open them to industrial fishing may ultimately harm the fishing industry itself.
The bamboo coral Isidella displaying bioluminescence in the Caribbean in 2009. Sönke Johnsen

From glowing corals to vomiting shrimp, animals have used bioluminescence to communicate for millions of years – here’s what scientists still don’t know about it

Dozens of animals, some on land but many in the ocean, can produce light within their bodies through chemical reactions. Scientists are still trying to understand when and why this trait developed.
Warm water expands, raising sea levels, which worsens storm surge during hurricanes. It’s only one risk from warming oceans. AP Photo/Gerald Herbert

The warming ocean is leaving coastal economies in hot water

Global ocean temperatures have been at record highs almost daily for over a year, and economies are feeling the heat.

Top contributors

More