Are Next Generation AirPlanes Concepts Environment Friendly?

In 2011, NASA comes up with a plan to integrate a fuel efficient airplanes in their line-up that produce less noise and Cleaner exhaust. Three aircraft manufacturing companies Lockheed Martin, Northrop Grumman and The Boeing delivered their demos to NASA that will likely to be operational in 2025. Moreover, each aircraft will fly with a speed of sound; cover the area of 7000 miles and carry the load of 50,000 pounds to 100,000 pounds either passengers or cargo.

All the contestants are exploring, testing, simulating and discarding technologies for the whole year and comes up with a ultimate winning model. The core demands of NASA is aircraft fly in air for longer period of time, consume less energy and should be fuel efficient. All is happening for the betterment of environment to preserve the mankind and innovate the   technologies in a healthier atmosphere.