The complexity of modern civilization is somewhat of a double-edged sword. It has brought great advances in human health and well-being, yet a full understanding of the sum-total of our knowledge of how the world works is now far beyond any single person. Consequently, getting people to agree on how to tackle complex problems becomes this much harder. In How The World Really Works, energy expert and policy analyst Vaclav Smil provides the big picture of the material and energetic basis undergirding human civilization, and what this means for attempts at addressing climate change. Rich in eye-opening facts and not a little bit opinionated, this is a much-needed reality check that purposefully avoids extreme views of both the techno-optimist and catastrophist kind.