ELI5: Explain Like I'm 5

Second generation biofuels

Alright kiddo, you know how cars and trucks and buses run on gasoline or diesel fuel, right? Well, some people want to find different ways to make that fuel so that it's better for the environment and doesn't cause as much pollution.

That's where second generation biofuels come in. They are made from things like plants, trees, and waste materials. The cool thing about these biofuels is that they don't have to compete with food crops like corn or soybeans, which is something first generation biofuels had to do.

Second generation biofuels use stuff like corn stalks, wood, grasses, or even things like old cooking oil or animal fat. Scientists use a process called "cellulosic conversion" to turn these materials into a kind of fuel called bioethanol. This is basically like making alcohol from plants instead of grapes.

Another cool thing about second generation biofuels is that they can be used in regular cars and trucks without needing anything special, unlike some other kinds of alternative fuels.

Overall, second generation biofuels are a way for us to make fuel that's better for the environment and doesn't come from limited resources like oil. Plus, they can help us recycle things that we might otherwise just throw away.