Every year, the Utah Museum of Natural History organizes The Nature of Things, a lecture series that offers commentary and discussion about recent scientific advancements as well as outstanding challenges. This year the series focuses on sustainability and has an excellent line-up of speakers. Last night Thomas Friedman, author of The World is Flat and Hot, Flat, and Crowded, spoke to a sold-out Abravanal Hall about America's future in the global race for ET, or engery technology, and the pressing need for a Green Revolution. His talk was informative and engaging, eye-opening and inspiring. If you missed the event, you can view a similar Friedman presentation on his website. If you are interested in learning more about humanity's impact on the environment, the two upcoming lectures in the series will be held at the Salt Lake City Library's Tessman Auditorium and are entitled "Global Warming, New Ecosystems, and a 'No Analog Future'" and "From Silent Spring to Silent Night: Frogs as Canaries".