Reuters: First, the good news: A vast majority of Americans — as many 90 percent, depending on how you phrase the question — think the U.S. should act to curb global warming. Most expect the benefits of a national response to outweigh the costs. Now, the bad news: Very few have acted on those beliefs. Only about 10 to 12 percent have contacted government officials, given money or volunteered with an organization working to reduce global warming. So we’re concerned, but …