Mr. Musk said on Tuesday that he had moved to be near a new factory Tesla is building outside Austin.
A reader faults the president’s priorities in the midst of a health crisis. Also: The problem with electric vehicles.
Struggling energy companies are increasing the production of renewable diesel, which can reduce greenhouse gas emissions.
A new agreement, supplying hydrogen fuel cell technology from General Motors, is less sweeping than the strategic partnership outlined in September.
General Motors said it would no longer back President Trump’s effort to strip California of the power to set fuel economy standards.
General Motors says it will increase its investment and model offerings over the next five years “to expedite the transition to E.V.s.”
Fans of the devices say they are a cheap way to travel. But other New Yorkers view them as a nuisance or worry about the risks they pose.
Goals include ending sales of gas and diesel cars by 2030, achieving net zero carbon emissions by 2050 and, perhaps, pleasing a new sensibility in Washington.
The fuel could play an important role in fighting climate change, but it has been slow to gain traction because of high costs.
A scandal led to a $2.9 billion trust fund for states to put cleaner vehicles on their roads. A lot of the money has gone to more diesel vehicles.