"Vaclav Smil's mission is to make facts matter. An environmental scientist, policy analyst, and a hugely prolific author, he is Bill Gates' go-to guy for making sense of our world. In Numbers Don't Lie, Smil answers questions such as: What's worse for the environment--your car or your phone? How much do the world's cows weigh (and what does it matter)? And what makes people happy?"-- Provided by publisher.

People : the inhabitants of our world -- Countries : nations in the age of globalization -- Machines, designs, devices : inventions that made our modern world -- Fuels and electricity : energizing our societies -- Transport : how we get around -- Food : energizing ourselves -- Environment : damaging and protecting our world.