Lauren Sommer

Controlled burns help reduce wildfire risk by clearing out overgrown vegetation. The U.S. Forest Service is suspending them, concerning fire scientists.

Federal agencies are doubling down on stopping extreme wildfires. They're also limiting the use of fire to help with fire prevention, which is concerning some fire scientists.

Extreme heat and on-going drought have made Western wildfires a national challenge this summer, with smoke moving from coast-to-coast. The peak of fire season isn't even here yet.

In Silicon Valley, Google has acquired billions of dollars of property that's at risk for flooding as sea levels continue to rise. That's raising questions about whether it's safe to build at all.

Facebook's campus on the shoreline of San Francisco Bay is at risk from rising sea levels. So is a nearby low-income community. That's raising questions about who should be paying for climate change.

Coastal cities need billions of dollars to build defenses against sea level rise. Tensions are rising over where that funding will come from: taxpayers or private companies with waterfront property?

A record dry year is creating extreme drought in the West. But even if it rains, climate change will continue to shrink the water supply for millions of people.

Severe drought is spreading after a record dry year in the Western United States. Climate change is only making water shortages worse.

Atlantic hurricane season kicks off on June 1, and it's supposed to be a slightly above average hurricane season. In the Western U.S., there's already a serious drought and elevated fire risk.

Hotter oceans are putting coral reefs in peril worldwide. Scientists are warning that to save them, heat-trapping emissions must fall, and reefs will need more protection and restoration.

For years, the Navy has objected to offshore wind farms on the California coast. The Biden administration announced a deal for new projects, crucial to achieving its climate change policy.

Coastal communities will need massive amounts of mud and dirt to protect their shorelines from rising seas. One federal agency has it, but most is disposed of instead of reused.

Environmental groups and business leaders are pushing President Biden to cut U.S. emissions 50% by 2030. The question is: what kind of climate policies will work that fast?

Kelp forests along Northern California have almost vanished. Divers and scientists are racing to stop purple sea urchins from taking over critical habitat.

Climate change is hitting the oceans hard, both warming and acidifying the water. Ocean scientists are hoping the Biden Administration dives in quickly to address it.

Power outages are increasingly common, putting everything from clean drinking water to medical equipment at risk. Some communities are installing solar power and large batteries to protect themselves.

A century ago, the shipping industry recorded the daily ebb and flow of tides. Now, those records are becoming crucial for forecasting how fast sea levels are rising in a warming climate.

Scientists say the next decade is crucial for slowing climate change. To catch up, President Biden's environmental policies will have to move faster than any in history.

President Biden has made climate change a focus of his first week in office. But it could take years before many of the executive actions he's highlighted to tackle the issue have a noticeable impact.

President Biden has set his sights on more than 100 Trump administration environmental rollbacks as well as plans to rejoin the international climate accord.