A 13-year drought has left farmers desperate to keep their water stores safe
Carlos Korner, O2 Company’s founder, says his solution is “a little more homemade.” A former publicist, he reached out to a chemist in 2018 to help him develop a product that could help combat Chile’s water scarcity. “To me evaporation seemed like the obvious place to start,” he says. A studyand which looked at 1.42 million bodies of water larger than 24 acres around the world, found that the rate of evaporation for reservoirs has increased by 5.4% each decade since 1986.
The rate of evaporation varies greatly depending on weather conditions around a body of water, and it’s hard for reservoir owners to measure how much they lose to evaporation, because doing so can require stopping withdrawals for weeks. O2 Company did its own experiment for one year in Chile’s central zone on an outdoor 2.5 acre reservoir. During the summer, it lost up to 0.8 inches of water off the top each month—about 6,000 metric tons.
O2’s product went on sale in 2021, after three years of lab and one year of field testing to confirm that it does not mix with water—and therefore doesn’t impact the crops it irrigates—and does not affect local wildlife. The firm currently has 25 clients in Chile, mostly farms, vineyards, and mining companies.There are a handful of other solutions out there to reduce evaporation, including large-scale physical barriers.
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