Brazil will be showcasing the world cup next year. To shuffle people around, they're going to be using  biodiesel buses. It should be cleaner – and safer.

Competing teams will be taken on bus trips fueled by 20 percent bland biodiesel (B20) coming from recycled oil. Brazilian company Biotechnos Projetos Autossustentaveis is developing the recycled biodiesel as part of the 2014 World Cup Brazil Promotion Plan.

Biofuel projects in the cities of Brasilia, Fortaleza and Belo Horizonte are also underway, and the projects are expected to produce 25 million liters (about 6.6 million gallons) of biodiesel. Because you know, there's going to be tons of people there.