Avoid short trips by car. Over the first four kilometers, a car uses around 30 liters/100km while the engine warms up. Sure, it might only be a few kilometers, but think about how many times you drive to the store or visit friends around the corner, and you’ll start reconsidering. Take the bike or walk instead, and you’ll exercise at the same time. By leaving the car behind for two of those trips per week, you will emit 50kg less CO2 per year.

Rather than buying a car, consider a car sharing service. You’ll save money and drive less, making a big difference to the climate.

Roof racks increase your car’s fuel consumption by 10 to 50%, depending on your speed. So take off that ski or bike rack when you’re not using it.

Under normal driving conditions, smaller engines deliver better fuel economy than larger engines. Choose the smallest engine that meets your everyday needs.

If you have a manual transmission, shift up to the next gear as soon as possible and always keep the vehicle in the highest gear possible without "lugging." Unless you’re passing or accelerating to merge on a highway, shift up at around 2000 rpm. Most modern cars can run in top gear even at speeds below 60 km/h. And you’ll be doing the neighbors a service too: One car driven in 2nd gear at 50km/h is perceived to be as loud as 20 cars in 4th gear at the same speed!