| http://www.w3.org/ns/prov#value | - It covers topics from the small challenges of everyday life to the future state of the environment and the health and well-being of the world's inhabitants.Curwood and company draw from an impressive array of experts, commentators and journalists, including Neil deGrasse Tyson, director of New York's Hayden Planetarium; Mark Hertsgaard, author of Earth Odyssey; Janet Raloff of Science News"; au
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