Renewable is a term used widely in the energy sector. It essentially refers to something that can be made again and is not a limited resource. For example, renewable fuels are made from materials that can be replenished again within a short-time frame. These types of fuel have a lesser impact on the environment and thus climate change as they are not limited and have lower emissions. The global energy crisis has triggered concerns about where our energy comes from; we are now seeing an increase in investment into clean energy – this is expected to surpass fossil fuelFossil fuels are energy sources formed from the remains of ancient plants and animals that lived mil investment as we look for more sustainable energy options.