Other small things you can do to reduce greenhouse gases:

Swap out regular light bulbs for energy-efficient ones.

Turn the thermostat down by 2 degrees in the winter, and up by 2 degrees in the summer.

Don't let the water run while brushing your teeth.

Use the cold water setting when washing your laundry.

Recycle! Compost! Use products with less packaging.

Check the air pressure in your tires for best fuel efficiency.

Take public transportation.