The Future of Energy: Innovation: 7 Cool New Ideas

Nature is awash with renewable, eco-friendly energy sources. Will they make economic sense?

A Sweet Ride in Brazil

Alcohol consumption in Brazil is on the rise, but not because people are drinking more. Instead, drivers are filling their gas tanks with ethyl alcohol, or ethanol, which is one of two fuel options used in a new generation of Brazilian cars called Flex. The cars work like traditional vehicles but can run on either gasoline or ethanol derived from sugar cane--a commodity in abundance in Brazil. Volkswagen, Ford, Fiat and GM all produce Flex lines. In May sales of Flex vehicles overtook gasoline models for the first time. By August, Flex sales had risen 61.7%....

Want the full story?

Subscribe Now

Subscribe
Subscribe

Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on TIME.com

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!