When the preliminary plans for California’s cap-and-trade program were first introduced in 2010, it was quickly regarded as a groundbreaking policy due to its stringency, size, and scope. California was the ninth largest economy in the world – it has now jumped to eighth – and the Golden State’s program would soon implement the first economy-wide cap on greenhouse gas pollution in the country. But, it was not the first cap-and-trade program in the United States. In fact, ten states in the northeast had implemented the Regional Greenhouse Gas Initiative (RGGI) in 2008. Like California’s program, the RGGI system places a mandatory cap on greenhouse gas emissions and sets a corresponding price on carbon, but covering only the electricity sector. Despite the difference in scope and location of these two programs, they are both demonstrating that carbon pricing through cap-and-trade is an effective way to decrease harmful greenhouse gas pollution while allowing the economy to grow.
A new report released this past Wednesday by the Acadia Center digs into the most recent data out of the RGGI system. According to the Acadia analysis, the RGGI states have decreased their emissions by 35 percent since the start of the program, while emissions from the 40 states unregulated by a cap only decreased by 12 percent over the same period. At the same time as emissions dropped, the RGGI state economies grew by 21 percent as compared to the non-capped states, which only saw an 18 percent growth in their economies. California has similarly been able to grow its economy impressively while implementing an aggressive cap on emissions. During the first year of the program, the Golden State moved from ninth to eight largest economy in the world, grew its GDP faster than the national average, and decreased capped emissions by four percent. Read More