This editorial says the climate change accords the U.S. reached with China in 2014 amount to little in the way of what China is required to do. China will be allowed to let its carbon emissions increase till 2030, two decades from now, and have the emissions decline afterward. This says the WSJ is what is expected to happen in China anyway because of demographic and urbanization trends. China will also have 20% of its energy come from non-coal polluting sources by 2030, something China plans to do anyway because of the high costs of pollution from coal plants. The U.S. commits to reducing its carbon emissions by 28% below 2005 levels by 2025, in place of the 17% currently set in 2009. This would increase costs of energy in the U.S., says WSJ, without any serious effort to cut emissions further in the developing countries.