The World is Flat author Thomas Friedman’s new book is titled Hot, Flat, and Crowded: Why We Need a Green Revolution — and How It Can Renew America. The Huffington Post has the roundup and some videos. “The book’s main argument is that the convergence of global warming, global flattening (the rise of middle classes all over the world), and global crowding (the population boom) is driving five key trends that will define the 21st century. Friedman argues that those five trends — energy and resource supply and demand, petro-dictatorship, biodiversity loss, climate change, and energy poverty — have all been driven past a tipping point such that they have created a new era of history: the energy climate era.” BONUS: From now until August 4, you can download The World is Flat audiobook in it’s entirety for free at Friedman’s website (it’s a hefty $39 on iTunes)!