It might seem there's nothing you can do about global warming. Of course, we all contribute to this problem. We all have a "carbon footprint," the total carbon dioxide emissions we create when we drive or fly or use electricity. The first step you can take to fight is to reduce your carbon footprint through conservation. Then use TerraPass to reduce your carbon footprint all the way to zero. When you buy a TerraPass, your money funds renewable energy projects such as wind farms. These projects result in verified reductions in greenhouse gas pollution. And these reductions counterbalance your own emissions. [TerraPass]