Lauren Sommer

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.

As Americans stayed home during the pandemic, cars and planes produced less heat-trapping emissions. But the effect is only temporary.

The global pandemic has led to a decline in ship traffic around the world, which means the oceans are quieter, given marine mammals a break from human activity.

This year had a relentless number of extreme wildfires and hurricanes. They were driven by climate change, and global temperatures that were among the hottest ever recorded.

2020 and 2016 are virtually tied for the hottest year on record. That means more powerful hurricanes, more intense wildfires, less ice and longer heat waves.

Many communities are locking down again due to the case surges, giving scientists more of a chance to see how that's changing the environment. They're finding it's affecting air and water quality.

Mary Nichols has been in charge of California's Air Resources Board for the past 13 years.

Homeowners are rebuilding after wildfires, but many won't be required by governments to use fire-resistant materials. Without such improvements, communities face harm again with the next fire.

Wildfires are still burning in the West at a time of year when fire activity is supposed to die down. Scientists say it's an example of how climate change is making the fire season longer.