Federal officials declared a water shortage for the Hoover Dam’s Lake Mead, the largest water reservoir in the US. It will trigger mandatory water cuts to several western states starting next year.

The Fagradalsfjall volcano in Iceland erupted over the weekend, and drone pilot Bjorn Steinbekk captured amazing footage by flying straight through the lava. The eruption is a small one but looks incredibly nonetheless.

A blob menacing Hawaii is now visible from space. A massive heatwave in the Pacific Ocean is killing off coral. Satellites are capturing the destruction so that scientists can learn how to rebuild the reefs.

Pods of killer whales are stalking the boats of Alaska fishermen and stealing their halibut catches, leaving the men with no fish and thousands of gallons of fuel wasted trying to flee. It’s not...

The seed bank designed to preserve the world’s crops and plants in the event of global disaster isn’t prepared to withstand the greatest global disaster facing our planet: global warming. Melting...

Air quality sinks to hazardous levels as biggest cloud seen in a generation swamps region after transatlantic journey

A prolonged heatwave in Siberia is “undoubtedly alarming”, climate scientists have said. The freak temperatures have been linked to wildfires, a huge oil spill and a plague of tree-eating moths.

One of southern Africa’s biggest tourist attractions has seen an unprecedented decline this dry season, fuelling climate change fears

Eva-Liv Island in the Franz Josef Land Archipelago has almost lost a peninsula. A 3-km-long strait has formed between the main land and the melted part where Cape Mesyatsev is located. Russian Arctic National Park employees discovered the missing land during an expedition to study walruses.

Increasing blanket of mucus-like substance in water threatens coral and fishing industry

Anglers has expressed concerns that this early-arriving green slime signals the end of what was viewed as the summer of plenty for walleye fishermen.

Late on the afternoon of Nov. 18, Kathy Marche, birding in Stephenville, came across a very colorful bird unfamiliar to her. She took photos but had to wait until she got home to look up the identification.

Eutrophication — excess nutrients in water — and environmental changes were identified as the cause of the harmful algal blooms in the fresh aquatic system of the Achencoil.

For years in Takikawa there was perhaps one bear sighting every few years, but since May 28 there have already been a total of 10 this year.

All-time records in Germany and Luxembourg could also fall in latest continent-wide heatwave

Affected areas include Kimende, Escarpment and Kinale

Rising sea temperatures may mean prey swimming in deeper water out of reach of guillemots, razorbills, puffins and kittiwakes

Robert Prescott, of the Wellfleet Bay Wildlife Sanctuary, believes a warming trend allowed the turtles to delay their migration south.

Climate change is keeping temperatures higher in the fall, setting up browntail-moth caterpillars to boom in summer. Their hairs are barbed and hollow and there’s a reservoir of a toxin inside.

Husky Energy was still working as of deadline to address a sizable offshore oil spill that occurred Friday, but rough seas on Saturday and into Sunday afternoon continued to prevent containment and recovery of approximately 250,000 liters of oil despite the arrival of a recovery team Sunday afternoon.