The federal Acid Rain Program, which limits emissions of sulfur dioxide and nitrogen oxides is seen as a model for new "cap-and-trade" systems to fight climate change in California and elsewhere.

Under cap and trade, regulators set a limit on the amount of greenhouse gases the state's economy can produce, lowering the limit bit by bit, year by year.

Cap and trade is extremely complex, and so are the politics involved. Here’s a guide to the program and the brewing debate. What is cap and trade, and how does it work?

California’s cap-and-trade program regulator, the Air Resources Board (CARB), presented price models for the first time last week. This is a significant milestone for the space, marking the ...

California is the only non-RGGI state that now also regulates carbon dioxide emissions from power plants, but its cap-and-trade program didn’t begin until 2013.. I fit linear mixed-effects ...

A second piece of the problem with cap and trade is that it profits polluters. In the E.U. this happened in two ways. One is that the power sector gets permits for free but they put they pass on ...

Assuming this shows higher costs than the cap-and-trade approach, state policymakers will likely point to the outcomes of this comparative model to promote the benefits of trading across sectors ...

Cap and trade was slated to expire in 2020, but the new law extends it until 2030, turning the five-year-old program into a more permanent fixture of California’s environmental agenda.

With New Jersey's announcement that it will rejoin a multistate compact to limit carbon emissions, 2018 could be a banner year for cap and trade in the states -- even if the idea is dead in ...

As a policy, cap and trade has been widely applied, in many cases successfully. The U.S. used one in the 1980s to successfully slash sulfur dioxide pollution that was causing acid rain and again ...

There’s been a lot of back and forth about whether cap-and-trade hurt the Democrats this past Tuesday. It’s mostly spin, with people focusing on whatever results they think bolster their case.