You know the feeling: half-past noon with nothing in your belly because you forgot to buy locally-produced organic milk for your cereal the night before, and your work for the morning ran late. Plus you've got a super-critical, high-powered, simply-can’t-be-late meeting that starts promptly at one o’clock.

You need food, and you need it now. There are plenty places that can get it to you in time, but you worry about the environmental fallout of such fast food. What to do? Well, if you’re in Washington DC, you can turn to On the Fly, an eco-friendly food retailer which operates out of several zero-emissions Smartkarts around the city.

Founded by a Zipcar alum, On The Fly takes a novel approach to food distribution, selling food from local partners, made as often as possible with local ingredients. The end result is a carbon-friendly as it is fresh.

And if you don’t live in DC, fear not—from San Francisco to NYC, sustainability and speed are no longer mortal enemies when it comes your served food offerings.