Your Challenge
Turn your car engine off when you're waiting at the lights or stuck in traffic, a couple of times a week.
Why you're doing this
Petrol and diesel cars are one of the main sources of greenhouse gases that cause global warming. They also kick out other nasty pollutants that damage plants and the atmosphere.
How you'll make a difference
This is a big step forward in cutting your carbon footprint and really helps the air quality in your neighbourhood. Plus, you'll save money on petrol. Win win.