Choosing former Secretary of State John Kerry as climate envoy is an important first step. To regain trust, the U.S. will also have to take concrete actions to cut its own greenhouse gas emissions.

Over US$12 trillion of COVID-19 relief has been promised. If a small portion was put toward economy-boosting green investments, the world could get on track to avoid the worst of climate change.

From expanding children's coverage to reducing surprise bills, Biden and lawmakers may be able to broaden health care access.

Biden will begin his presidency in the midst of a global public health crisis that's already killed over 240,000 people in the US alone. His team is already planning how to get COVID-19 under control.

When the scientific establishment gets involved in partisan politics, surveys suggest, there are unintended consequences – especially for conservatives.

The Trump administration has used executive orders, deregulation and delays to reduce environmental regulation. Biden administration officials will use many of the same tools to undo their work.

With a new president in the White House and NASA's chief administrator resigning we can expect changes to space policy.

After four years of the US government undoing climate change policies and partnerships, a Biden administration has a chance to rebuild that leadership. But success will require more than quick wins.

Hamstrung by a Republican Senate, President-elect Biden will need to look abroad for collaborators on climate action.

Republicans and Democrats take sharply different positions on managing US public lands, but there's solid consensus on some issues.