Hartford Courant: Obviously, Connecticut isn’t going to solve climate change on its own. But by committing now to meaningful cuts in greenhouse-gas emissions – standards that will change the way state agencies, municipalities, utilities, businesses and Connecticut residents use energy every day – Connecticut will reap the rewards in better energy efficiency, lower costs, cleaner air and a healthier environment. There will be another benefit, too. By adopting rigorous standards sooner rather than later, …