Methane, refrigerants, black carbon – these are all pollutants that fall within a class of global warming agents known as SLCPs, or short-lived climate pollutants. As the name suggests, each has a shorter lifetime in the atmosphere than their better-known cousin, carbon dioxide (CO2) – but at the same time each is more potent (and works in different ways) than CO2 at warming the planet.
While SLCPs are a serious problem – responsible for nearly a quarter of the warming we’re experiencing today – cutting them is a huge opportunity to have almost an immediate benefit on slowing global climate change.
SLCPs and California Climate Policy
On April 30, Governor Jerry Brown announced new statewide targets for all greenhouse gas emissions – stating by executive order that all GHGs must be reduced to 40 percent below 1990 levels by the year 2030. And, while many may be asking what more the state can do to cut more GHGs to meet the governor’s overall goal, on May 7 the Air Resources Board demonstrated that SLCP reductions are going to play a major role.
The new SLCP plan (released as a concept paper) didn’t receive a tremendous amount of fanfare. That lack of attention isn’t surprising – the SLCP plan after all is about a specific class of pollutants that is named by a rather obscure acronym. But, while the pomp of the governor’s executive order to cut all GHGs may have stolen the show on April 30, the May 7 plan may have just as much circumstance. Read More
