Pound for pound, it’s 28 times better at trapping atmospheric heat than CO2.

A new study says New York City’s bike-share program saved nearly 500 tons of emissions over four years.

Environmental groups argue that the oil-and-gas industry emits nearly twice as much of the greenhouse gas as the agency reports.

The voluntary carbon offsets market is unregulated, with no standard pricing. And offsets may not deliver what they promise.

Climate scientists say in the U.S., the transportation sector is the largest source of carbon emissions. Expanding public transit is key, they say.

Where EV sales are now and where they may be headed, under a new administration that is expected to nudge the industry forward.

SUVs, crossovers and pickups dominate the market. There are implications for the environment and pedestrians.

By how much shipping costs and the price of diesel will increase is up for debate.

And they’ll look to do it without major budget impacts, because there’s no dedicated “city climate change fund.”

Ford, BMW, Honda and Volkswagen are parties to the deal with the California Air Resources Board, which apparently is designed to pressure the administration and the rest of the auto industry into joining or reaching a compromise.