According to a group of American youths, the US government is failing to uphold the preamble to the constitution —specifically, the government has failed "promote the general Welfare" of the people by "failing to protect the atmosphere." And, despite being too young to vote, the group—a non-profit called Kids vs. Global Warming— is trying to sue the US government in a case which is to go before the U.S. District Court in Washington D.C.

It was only a matter of time before suds producers embraced eco-friendly beer making.

And it's no surprise that the largest breweries, which have the longest history and the greatest resources, have developed ambitious environmental goals. But arguably some of the newer breweries, including Sierra Nevada Brewing Co., lead the pack by showing an earlier commitment to being eco-friendly and a spirit of innovation in achieving their goals.