THE STICKY PROBLEMS WITH TAR SANDS

By Cristen Conger news.discovery.com Sep 2, 2011 Actress Darryl Hannah and NASA scientist James Hansen are just two of the more than 800 environmental protesters that have been arrested in front of the White House this week. The crowd has been demonstrating against the proposed Keystone Pipeline XL project, which involves building a 1,700-mile (2,735-kilometer) […]

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