USA TODAY US Edition

HOW OBAMA CAN FOLLOW PARIS DEAL

Use executive authority to double down on reductions of carbon emissions in the U.S.

- Dan Becker and James Gerstenzan­g

President Obama’s crackdown on greenhouse gas emissions from cars and power plants made the U.S. a leader at the United Nations climate summit.

Now, with the whole world watching and 2015 smashing high temperatur­e records, he can give real meaning to the promise Paris offers without bumping into an intractabl­e Congress.

The president can accelerate and expand efforts to slash emissions of global warming pollutants by the natural gas and oil industries. He can improve refinery efficiency. He can issue tougher efficiency standards for energy-wasting home furnaces. And the government must begin to tackle industries such as cement manufactur­ing, which gets little public attention but spews vast amounts of carbon dioxide, the gas primarily responsibl­e for climate change. METHANE LEAKS Methane is the most plentiful greenhouse gas in the atmosphere, after carbon dioxide. It is emitted in far smaller amounts and disappears sooner, but molecule for molecule it traps more than 25 times as much heat as CO2 over 100 years.

The Environmen­tal Protection Agency estimates that nearly 30% of U.S. methane emissions come from oil production and the production, transmissi­on and distributi­on of natural gas. The agency is preparing standards that would limit methane leaks from new drilling sites and pipelines.

But what about currently operating sites? They are likely responsibl­e for roughly 90% of the oil and gas industries’ methane emissions. The administra­tion must set standards that would require industry to plug these leaks.

The president used authority granted by Congress in the Clean Air Act to tackle pollution from cars and power plants. Using that same authority, the administra­tion can crack down on oil refinery emissions — one of the largest industrial sources of greenhouse gases after power plants.

Much electricit­y is wasted on inefficien­t appliances. Some consumers know to shop for those with an “energy star” efficiency rating. The government sets standards to prod manufactur­ers into making improvemen­ts — for those shopping for homes they own and for renters whose appliances are supplied by landlords.

Efficiency standards for dozens of appliances have been the sub- ject of negotiatio­ns with footdraggi­ng industry. For example, according to Marianne DiMascio of the Appliance Standards Awareness Project, litigation and other resistance have stalled the adoption of meaningful new energy-saving rules for gas-fired home furnaces since 1987.

This year, the Energy Department proposed requiring new units to convert 92% of their fuel’s energy into heat, a significan­t improvemen­t from the current 80% rate. STUCK IN CEMENT Manufactur­ing cement involves burning fossil fuels to heat raw materials to up to 2,700 degrees Fahrenheit, giving off roughly a ton of carbon dioxide for every ton of cement emerging from the kiln.

We must work to cut these emissions and those from other energy-intensive industries such as metals production.

To be sure, these measures lack the poetic appeal of solar panels and wind turbines that cleanly yield electricit­y from endlessly renewable resources — themselves growing elements in the fight against global warming. Even so, using energy more efficientl­y is the key workhorse as we wring greenhouse gases from the economy.

After 2016, the next president will need to defend, and follow through on, the two major steps Obama has set in motion: the tough fuel efficiency standard that will cut automotive carbon pollution 40% while delivering a new car fleet that averages 54.5 miles per gallon in 2025, and a 32% cut in power plant emissions. Automakers are already trying to weaken the new-car standards, and coal and utility forces have threatened to drown the Clean Power Plan in a flood of litigation.

The refusal of so many Republican presidenti­al candidates and members of Congress to even recognize the problems posed by global warming only underscore­s the need for Obama to do as much as possible in 2016.

To turn the tide against the changing climate, he must act boldly and leverage our leadership as though the world depends on it. Because it does.

Dan Becker directs the Safe Climate Campaign. James Gerstenzan­g, who formerly covered the environmen­t and the White House for the Los Angeles Times, is the campaign’s editorial director.

 ?? FRANCOIS GUILLOT FRANCOIS GUILLOT, AFP/GETTY IMAGES ?? Demonstrat­ors rally in Paris on Dec. 12, when the agreement on climate change was adopted.
FRANCOIS GUILLOT FRANCOIS GUILLOT, AFP/GETTY IMAGES Demonstrat­ors rally in Paris on Dec. 12, when the agreement on climate change was adopted.

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