Phytoplankton are tiny ocean organisms that naturally sequester carbon, like plants on land.

Health departments struggle to adequately survey for ticks to warn doctors about new species and the diseases they carry.

Air conditioning has become a hot debate in France in a summer of heatwaves.

A lot of companies want the EPA in charge of setting national climate regulations because it helps shield them from lawsuits and creates a predictable environment in which to make investments.

Hurricane Erin is not set to make landfall this week, but will likely cause heavy rainfall, flooding and life-threatening rip currents along the U.S. east coast this week.

Critics argue that they strain water and energy resources, which will hinder the state from reaching its climate goals.

In small town Washington — where hydropower is plentiful — data centers are creating jobs and funding amenities. But water and energy aren't unlimited — and some worry about long-term sustainability.

Giant dams built to conserve the Colorado River have nearly wiped out nearby native cottonwood trees, causing big ecosystem disruption. Tiny dams built to mimic those built by beavers could bring them back.

Transportation Secretary Sean Duffy says he doesn't agree with federal subsidies for high-speed EV chargers, but that his department "will respect Congress' will" and release the funds.

Robert Bergstrom, CEO of OceanWell, says his company's desalination pods that had been tested at a freshwater reservoir near Los Angeles are a step closer to going into the ocean.