In a rooftop greenhouse near downtown Denver, cash crops are thriving on hydroponic life support. Arugula. Chard. Escarole. Cabbage. “And basil,” said Altius Farms CEO Sally Herbert, plucking a bright leaf. “Which you really should taste. Because it’s magnificent.” The vertical farm is one of many Colorado models for coping with increasing water scarcity in the western United States, as climate change makes droughts more frequent and more severe.
Scientist sounds water crisis alarm
The megadrought affecting the western United States has prompted a scientist to warn that Canada’s prairie provinces need to better plan how water is used across the entire Saskatchewan river system. “A water expert from California we had up here a few years ago said that Alberta and Saskatchewan reminded him of California and Arizona around 1912,” said John Pomeroy, the Canada Research Chair in Water Resources and Climate Change at the University of Saskatchewan. “We’re still getting by OK, we have pretty loose agreements, everybody’s getting along, it’s fine – but we have trouble ahead.”