 We found in our late fall 2012 survey that there continues to be an uptick in American belief in the existence of global warming. We've now seen in recent surveys a jump back up from levels of the last couple of years where belief was around the 50% level, to our nearly now seven out of ten Americans believe there is solid evidence of global warming over the last four decades. We've noticed a significant increase in the level with which Republicans believe global warming is occurring. Now that still reflects substantial differences between Democrats and Republicans, but for the first time in over four years a majority of Republicans, now 51%, in our latest survey, believe there's solid evidence of global warming. Doesn't necessarily mean the parties are converging, but there's a significant movement on the Republican side of this. Political affiliation still is a very very good predictor. That said, certainly we see continued reliance on some personal experience or reference to climate change, especially amongst those who believe that it's occurring. On the flip side we've noticed that people who do not think there's solid evidence are less and less inclined to refer to some weather experience, much more inclined to talk about natural variation or perhaps politicization of the issue.