When it comes to air pollution the focus is carbon dioxide these days - a greenhouse gas contributing to global warming. But other forms of air pollution certainly still exist, and in some cases are on the rise.

What exactly is renewable energy? What are the various types, benefits and disadvantages. Learn more in this beginners guide.

While not all of us can afford solar panels on our roof, many electricity providers now offer green power products that are quite economical and allow us to do a bit more to help lessen our impact on the environment.

If you're ready to ditch the car for the sake of the environment, aren't keen on a motorbike or motor scooter and excessive pedaling isn't yet your scene, consider a moped or electric bike.