Thread by @jendlouhyhc

The Trump administration argues that locking in 2020 fuel-economy & tailpipe standards will save lives, make cars cheaper & speed fleet turnover (as motorists trade in old cars for safer, new models).
bloom.bg/2LWqL8I

Or, as @NHTSAgov Deputy Administrator Heidi King puts it:

"The benefits don't accrue if people don't buy the cars." If you raise the price of cars too much to satisfy ever-more stringent standards, people won't buy them & will "continue to drive around in their old cars."

@NHTSAgov Critics say the administration is relying on funny math & questionable assertions to justify the changes. Luke Tonachel of @NRDC says govt analysis hikes the added costs of meeting the clean-vehicle standards & underestimates the fuel savings.