The Green River Basin in Wyoming, Utah and Colorado contains another 800 billion barrels.

FORBES: Most Green Energy Projects Are Thinly Veiled Exercises In Crony Capitalism

"Pomegranate juice contains the highest antioxidant capacity compared to other juices, red wine and green tea, " said Professor Michael Aviram, who led the team.

BBC: NEWS | Health | Pomegranates: the fruity panacea

The centre, which opened in 1975, contains a range of interactive displays on wind, water and solar power, green transport and energy efficiency.

BBC: NEWS | UK | Wales | Mid | Praise for town's 'green' residents