| http://www.w3.org/ns/prov#value | - Venture capital investment in cleantech companies in the United States reached $4.9 billion in 2011, 4.5 percent down compared with investments in 2010, according to Ernst & Young L.L.P. The category refers to activities in alternative fuels, energy generation and storage, energy efficiency, water, environment and industry focused products and services" in agriculture, construction, and other s
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