President Trump’s move to withdraw the U.S. from the Paris Climate Agreement for a second time sends a clear signal to international partners that the U.S. is hot and cold on climate action. …There may be sufficient momentum now in both the Paris regime as well as the burgeoning clean energy sector that this will make only a symbolic difference. To have the U.S., which is the second-largest emitter behind China, exit the agreement has the potential for other countries to start viewing the U.S. as an unreliable partner on climate and potentially other issues as well. Last time the U.S. left, no other country followed that move. This time could be different, given the rightward, anti-climate policies tilt in some key countries. …America’s withdrawal from Paris doesn’t take effect immediately, although the executive order notes the administration will treat it as such.