The Green Megalopolis: An eco-savvy blueprint for tomorrow's megacity Kevin Hand

And check out PopSci's complete coverage of the future of the environment at popsci.com/futurecity.

In our annual Future of the Environment issue, we take a look at the monumental problems facing our world as we continue into the 21st century, as well as solutions ranging from the audacious to the everyday to, quite literally, save the planet.

If you're not automatically redirected to the Future of the Environment site, click here.