If you plan to buy a car, consider going electric. More and cheaper models are coming on the market. Even if they still run on electricity produced from fossil fuels, electric cars help reduce air pollution and cause significantly fewer greenhouse gas emissions than gas or diesel-powered vehicles. Compared to an average car using diesel or petrol, you can save about 0.48 kg of CO2 every time you drive 4 km (2.5 miles) in an electric car.
According to UK DEFRA, an average car using diesel or petrol produces about 0.17 kg of CO2 per km, while an average battery-electric car only produces 0.05 kg of CO2 per km. If you switch to an electric car, you can save 0.48 kg of CO2 every time you drive 4 km (2.5 miles).