Environment

Nashua, N.H., expects to be a destination for people migrating away from the coasts and toward lower temperatures. Officials say a pandemic influx has shown the need to plan for that growth.

"For the first time in history, nuclear weapons are going to be illegal in international law," says Elayne Whyte, who oversaw the treaty's creation.

The North Carolina Zoo is welcoming its newest resident, a 1,000-pound male polar bear. The zoo has high hopes the addition will result in new offspring. 

President Biden's plan to cancel the permit for the Keystone XL pipeline is welcome news to Native American governments and activists in Montana — but disappointing to many elected officials.

This likely means the end of the $8 billion pipeline, a years-long project that would have carried oil sands crude from Alberta, Canada, to the American Gulf Coast.

President Biden signed an executive order to have the country reenter the Paris Climate Agreement, less than four months after formally withdrawing.

In rich countries, every sector of the economy reduced its contribution to climate change last year — with one big gas-guzzling exception.

President Biden's wave of executive actions includes an order to reexamine one controversial, but widely used, pesticide called chlorpyrifos. The Trump administration kept it on the market.

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

Some Massachusetts voters hope that the Biden administration will do better on protecting the environment and managing the pandemic. But some say they fear President Biden may be too moderate.