On a recent Friday afternoon, the critical care charge nurse at a South Los Angeles hospital tries to send another nurse off to grab lunch. Maria Arechiga is interrupted by the beeping of an alarm, the vitals of a patient declining, organs failing.

She dons a surgical gown and unzips a plastic tarp that hangs from the doorway of a hospital room — a makeshift isolation room on this floor temporarily transformed into a larger intensive care unit to make space for the patients that just keep coming. She slips inside.

As part of his ambitious plan to address climate change, President Biden is revoking a key cross-border presidential permit needed to finish the controversial Keystone XL pipeline

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. The pipeline has come to signify the debate over whether fossil fuels should be left in the ground in order to rein in greenhouse gas emissions and avoid the worst damage from climate change.

Updated at 8:37 p.m.

President-elect Joe Biden outlined his plans for economic relief from the coronavirus crisis on Thursday, citing the need for a more robust vaccination plan as well as for additional direct payments to American families to help recover the U.S. economy. His plan, called the American Rescue Plan, is expected to cost $1.9 trillion.