President Barack Obama and Secretary of State John Kerry hailed the newly passed international climate change agreement as a major achievement that could help turn the tide on global warming, but got a quick reminder that Republicans will fight it all the way.<br />"We've shown that the world has both the will and the ability to take on this challenge," Obama said from the White House.<br />The immediate reaction of leading Republican critics was a stark reminder of the conflict that lies ahead.<br />Senate Majority Leader Mitch McConnell of Kentucky said Obama is "making promises he can't keep" and should remember that the agreement "is subject to being shredded in 13 months."
