Three of Mitt Romney's most visible economic advisers have expressed support for pricing carbon, leading some economists to believe that the Republican candidate is receiving climate advice as he faces criticism about his mysterious tax plan. The trio comes with conservative credentials and is deployed to explain, and defend, Romney's ambitious proposals to overhaul the nation's maze of tax codes by cutting government collections from corporations and individuals. These advisers have also recommended in the past that pricing carbon is a smart way to help finance these types of tax cuts. Romney, in contrast, has provided little in the way of details about how his plan might be paid for. Go to story #1

In the steel and Plexiglas chambers that make up Nathan McDowell's research station near the Bandelier National Monument in New Mexico, the future of regional forests is playing out in miniature. McDowell is baking trees. By studying the plants' mortality in this simulated environment, McDowell hopes to better understand how the future climate may affect forests, possibly even altering the landscape. Go to story #2