Two Columbia University scientists have mapped irrigation over time. Between 1901 and 2002, irrigated land has jumped five-fold, helping to feed today’s six billion people. It also tends to cool temperatures and increase precipitation, masking global warming. What happens if the water runs out?
Would you dine out in a repurposed coal plant? Or play basketball in a community center that once emitted massive amounts of carbon into the atmosphere? Or meet classmates on campus at the new union building that spewed out black smoke for years? Many of the folks who