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How does a cap and trade system for carbon emissions work?

Nov 4, 2021
It's a market-focused alternative to carbon taxes.
There are more than 50 cap and trade programs across the world to address carbon emissions.
Kevin Frayer via Getty Images

Cap and confiscate: Now anyone can buy and lock up pollution permits

May 25, 2021
A "vault" for carbon-emissions permits could also create incentives to drive innovation in the battle against climate change.
Emissions from a coal-fired power plant enter the atmosphere. Some states limit carbon emissions and create market-based incentives for companies to meet those goals.
Jeff Swensen/Getty Images

The Trump administration wants to end California's cap-and-trade program

Oct 23, 2019
Stop us if you’ve heard this one before: the Trump administration is picking a legal fight with California.
California's cap and trade program aims to lower climate change-causing emissions. Above, smog hovers over Los Angeles in 2002.
David McNew/Getty Images

It's getting more expensive to emit carbon pollution in Europe

Jul 12, 2019
In Europe's cap-and-trade market to limit emissions of carbon dioxide, the price of an allowance to pollute has increased to an 11-year high.
Steam and exhaust rise from a power plant in Oberhausen, Germany, in 2017.
Lukas Schulze/Getty Images

Could California’s cap-and-trade system control other pollution, too?

Apr 20, 2017
Even as the White House rolls back national climate change programs, California is moving forward on a cap-and-trade system to reduce greenhouse gas emissions. Yet the Golden State still has some of the highest air pollution in the nation from other pollutants its industrial plants spew. A new bill would use California’s cap-and-trade rules to […]

A new emissions cap-and-trade program starts up in Canada

Dec 30, 2016
Ontario’s program will connect with California’s and Quebec’s, adding momentum to efforts to combat global warming.

Canada will have a carbon price. Will the US?

Oct 4, 2016
The policy will have to balance pushing climate goals with not getting too far ahead.
A night view of the Syncrude oil sands extraction facility near the town of Fort McMurray in Alberta, Canada.

For public good, not for profit.

To cut emissions, Canada could expand carbon pricing

Jul 19, 2016
If Canada rolls out carbon pricing nationally, how will it affect the US?
An aerial view of the Suncor oil sands extraction facility near the town of Fort McMurray in Alberta, Canada.

Whatever happened to "Cap and Trade"?

Dec 9, 2015
The big idea of companies trading rights to emit greenhouse gases has floundered in Europe.

China has a cap-and-trade model: the U.S.

Sep 25, 2015
The system reduced American utilities' sulphur emissions by 70 percent.