Climate change

A few cities are hiring what's known as a "chief heat officer."

"You can pay kind of a lot to get us where we need to be on the front end of a disaster...or you could pay twice or three times as much to rebuild and recover," said Mark Ghilarducci, Director of the California Governor's Office of Emergency Services.

Lower pH water, caused by higher carbon dioxide emissions, can kill baby oysters as they fight for minerals to grow their shells.

Countries are turning back to less expensive but carbon-heavy coal because of rising energy costs and Russia's war in Ukraine.

West Virginia v. EPA is likely to restrict federal agencies' power to issue all sorts of regulations, according to Blake Emerson of UCLA Law.

Some tech giants have pledged to decarbonize operations. But their cash contributes to climate change, says environmentalist Bill McKibben.

Storms are becoming more frequent and covering new ground. At the same time, mitigation efforts are getting more expensive

Political scientist Ian Bremmer sees big opportunity in crisis.

People seeking to minimize flood and fire risk when looking for a home have new tools to guide them.

Cities were responsible for over half of the world's carbon emissions in recent years. They could turn that around in the decades to come.