We use oil in so many different ways. From petrol to fuel for cars, it's all around us. But what if we run out? It's a thought that has crossed everyone's mind at some point. The Mckinsey Global Institute suggests that by 2040, 97% of the world’s energy needs will be met by fossil fuels (coal, gas and oil). So how much oil is left on Earth? And how much do we consume? This article will explore these questions and more! The problem with oil Oil on its own is not the problem. The problem with oil is that it's finite. It's only a matter of time before...