Here's a surprising fact: a standard gas mower can emit the same amount of common air pollutants in one hour as driving a new car for over 550 kms!

The Clean Air Foundation has already retired 16,000 of these dirty beasts, and to encourage you to join this year's campaign they have partnered with Home Depot to offer a $100 rebate to offset the costs of replacing your polluting lawn mower with a push or electric model.

Or you can join the lawn-less revolution and replace your imported grass with native plants.  Natural species need little or no watering, and you'll never have to mow the lawn again!

http://nature.ca/plnt/wycd/actcat_e.cfm#npga