North County Times: California lawmakers have made fighting climate change sound easy, regional officials suggested Friday. But the reality is, complying with laws that call for a reduction in greenhouse gas emissions linked to global warming is going to be anything but easy. "We can put (energy efficient) light bulbs in our houses all we want, but that isn’t going to be significant compared to all that is going to have to be done," said County Supervisor Ron Roberts, at a meeting of the San Diego …