Fun animal farmers show readers how their crops are planted and harvested using tractors, trailers, plows, and other farm machines.

Plows, Plagues, and Petroleum: How Humans Took Control of Climate

"Is excellent reading for scientist and non-scientist alike". -- James White, Science
Bill Ruddiman's provocative suggestion of early human influence on the atmosphere will draw fire. But I stand with Ruddiman: the simultaneous upward departures of CO2 and CH4 from climate indicators, unique in 420,000 years, is probably an early footprint of humankind.