Countless certification systems from around the world help travelers determine which providers are committed to environmental and social sustainability.

CNN: Giving something back

More detailed rating systems and independent certification could help. eLance already gets buyers to evaluate sellers in several categories, such as timeliness and responsiveness.

ECONOMIST: The Internet: At your service | The

The review includes not just the 787's ground-breaking lithium-ion battery system, but how that system works with the aircraft's electronic systems, their certification, manufacture and assembly, he said.

NPR: US Officials Defend Handling Of Boeing 787 Mishaps

Efforts to improve international regulations regarding the certification, inspection and maintenance of aircraft environmental control systems are needed.

CNN: Commentary: Flu and your health on a plane

Advances made by these American companies during the first contract phase known as the certification products contracts (CPC) will begin the process of ensuring integrated crew transportation systems will meet agency safety requirements and standards to launch American astronauts to the International Space Station from the United States, ending the agency's reliance on Russia for these transportation services.

ENGADGET: NASA awards Boeing, SpaceX and Sierra Nevada $30 million in contracts