What will population centers look like in 20 years' time? Innovations in transportation, energy production and technology will have to keep pace with a host of challenges
June 15, 2010 |
Features
Local energy sources coupled with widespread, inexpensive gadgetry will soon enable cities to become smarter, more sustainable and more self-reliant
60-Second Earth
The cities of the future might be greener, cleaner and more vibrant if people are put before automobiles. David Biello reports
Scientific American
Growing crops in city skyscrapers would use less water and fossil fuel than outdoor farming, eliminate agricultural runoff, and provide fresh food
Features
New York City--and other major metropolises around the globe--face an epic challenge in coping with the impacts of global warming
Deadline: Jul 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
Deadline: Jul 14 2013
Reward: $1,000,000 USD
This is a Reduction-to-Practice Challenge that requires written documentation and&
Powered By: 