Have a few disused cell phones lying around in the Drawer of Misfit Tech? RipMobile wants to recycle them for you, and it’s willing to dole out top dollar in the form of gift certificates you can redeem for carbon-offset credits from TerraPass.

The average car emits about 10,000 lbs of carbon dioxide (a leading greenhouse gas) per year. By purchasing credits from TerraPass, you’re reducing your car’s environmental impact by helping fund clean renewable-energy projects, such as solar or wind power, which will subtract an equivalent amount of carbon dioxide pollution from the global-warming equation.

Turning your car “carbon neutral” doesn’t give you license to pollute your SUV-loving heart out, of course, but helping move the economics and production of alternative energy is a huge positive step forward to rescuing us from our “national oil addiction.”

Have an old Motorola Razr V3 gathering dust? It’s worth $75, which is enough to trade in for a Utility TerraPass.

Why recycle cell phones at all? According to TerraPass,

• Recycling the precious metals such as gold in a cell phone reduces pressure to mine new materials. Mining is incredibly destructive.
• Cell phones contain toxic materials that don’t belong in landfills. Reselling a used cell phone is far more energy efficient than manufacturing a new one.
• Last but not least, purchasing a TerraPass with the proceeds from your recycled cell phone is a great way to promote renewable energy and fight climate change.

Check out how much your cell phone or PDA is worth here.

(The hub’s prehistoric Motorola is worth bupkas, but I’m still making him recycle it.)