THE NOVEL coronavirus has halted much of the country — but it has not stopped the Trump administration from ramming through unwarranted and unwise rollbacks of major environmental rules. Administration officials have pressed government workers, even amid the pandemic, to rip up regulations well before the November election, which would make them harder for a new president to reinstate. The pressure appears to be working. The Environmental Protection Agency concluded on March 31 its years-long effort to quash car and truck fuel efficiency rules designed during President Barack Obama’s administration. The old regulations would have required steady 5 percent-per-year improvements in average fuel economy through 2025. The new ones demand only 1.5 percent annually through 2026. That may not sound like much of a difference, but the updated rules would allow perhaps 1 […]