TerraPass is the brainchild of Dr. Karl Ulrich at the University of Pennsylvania. Karl launched TerraPass in October 2004 as a way to help everyday people reduce the climate impact of their driving. It might seem there's nothing you can do about global warming. The problem is just too big. Their goals are to have one million members and offset ten billion pounds of CO2 emissions. Use TerraPass to reduce your carbon footprint 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.

Truly genius. The gift of giving to the person you love AND the planet you love.

This Terra pass is an unbelievably brilliant idea. They can be purchased for car, home, flight and more.

Don't really understand?

Read on from their site:
The first step you can take to fight global warming is to reduce your carbon footprint through conservation. Drive less. Turn down the thermostat. Buy locally produced goods.

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 lets me drive guilt-free, even in my hybrid!