President Barack Obama claimed progress Wednesday in his second-term drive to combat climate change but said more must be done to address a generational problem. One year after unveiling an aggressive plan, Obama said new【C1】______limits on power plants, renewable energy projects and new【C2】______for green technology have cleared the way for further action in the U.S. and abroad, despite steadfast【C3】______from much of Congress. 'When you take those first steps, even if theyre【C4】______, and even if there are politics sometimes, you start【C5】______momentum and you start mobilizing larger and larger communities,' Obama said. Obamas【C6】______served as a progress report for his climate plan, which the president【C7】______out last June. Twelve months later, much of the plan is in【C8】______, although the most ambitious steps are still up in the air and will take years to be【C9】______realized. Change wont be instantaneous, Obama【C10】______. 'Theres no silver bullet' Indeed, many of the steps hes taking are【C11】______, limited in scope by hostility from both parties to putting a【C12】______on carbon pollution, which would require new laws from Congress. Still, Obama said hes seeking to【C13】______the problem but cutting it up into smaller pieces. 'Were moving, and its making a【C14】______,' he told a supportive crowd at the League of Conservation Voters annual dinner. The environmental group【C15】______Obama early in his 2008 campaign.【C16】______on the international front, momentum has been obscure.【C17】______global climate talks next year in Paris, there are fresh【C18】______that some countries are urging others to resist【C19】______moves to curb carbon. That could discourage even bigger polluters from【C20】______. 【C1】