Arizona starts talks on addressing dwindling Colorado River

Arizona is starting to address issues related to the use of water from the Colorado River, a key resource in the U.S. Southwest.

The Arctic is on fire: Siberian heat wave alarms scientists

On Saturday, the thermometer hit a likely record of 38 degrees Celsius — or 100.4 degrees Fahrenheit — in the Siberian town of Verkhoyansk in Russia’s Sakha Republic.

Sahara dust blankets Caribbean, air quality hazardous

A massive cloud of Sahara dust is blanketing the Caribbean as it heads to the U.S. with a size and concentration that experts say hasn’t been seen in half a century.

Earthquake strikes Oklahoma after Tulsa Trump rally, shaking felt around state

An earthquake in northern Oklahoma on Saturday night rattled the entire state, including in Tulsa just after President Trump finished his return to the campaign trail before thousands of supporters.

EPA drops regulation for contaminant harming babies' brains

Administrator Andrew Wheeler's announcement was the latest in a series of Trump administration rollbacks or eliminations of existing or pending public health and environmental protections, targeting Obama administration initiatives in particular. The Trump administration says the regulations are burdensome to business and are unnecessary.

Coronavirus pandemic disrupts fight to save endangered animals and habitats

The coronavirus pandemic is hampering the ability of scientists to protect threatened species and habitats, from South American rainforests to African savannahs.

Scientists learn how tiny critters make ocean 'snot palaces'

Master builders of the sea construct the equivalent of a complex five-story house that protects them from predators and funnels and filters food for them — all from snot coming out of their heads.

Midland could be under nine feet of water as mid-Michigan dams break, forcing thousands to evacuate

Two dams have broken and a third was under imminent threat of breaking in mid-Michigan, forcing thousands to flee. Gov. Gretchen Whitmer warned the city of Midland could be under nine feet of water by Wednesday.

Study: World carbon pollution falls 17% during pandemic peak

The world cut its daily carbon dioxide emissions by 17% at the peak of the pandemic shutdown last month, a new study found.

A cataclysmic eruption: Looking back at Mount St. Helens 40 years later

The eruption was the worst volcanic disaster in the history of the conterminous United States, according to the United States Geological Survey.

Senators seek to designate Gila River as 'wild and scenic'

Supporters say the project is vital to supplying communities and irrigation districts with a new source of water as drought persists.