This bio-fuel is an alternative to gasoline and is less harmful to the Earth.

VOA: standard.2010.04.25

"I believe that this nation should commit itself to achieving the goal before this decade is out of landing a man on the moon and returning him safely to Earth,"

VOA: standard.2009.07.16

On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21