Man's Folly Held Worst Drain on World Water
Paris conference at UNESCO House warns that ignoring environmental effects of irrigation projects risks global water shortages. Experts cite Kariba Dam displacing 29,000 farmers, Indus Ganges salinization, Aswan Dam schistosomiasis risks, and US overpumping for cotton. Nace urges better measurement of river flows and wiser water use.
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Beer Can Tabs Replace Coins in L A Parking Meters
In Los Angeles meters, washers and foreign spins serve as substitutes for coins. Officials say pull-tab rings from beer cans work more often, with city workers counting about 1.3 million in small change yearly. Slugs, wedding rings, tokens and a $5 piece are among oddities found. foreign coins are banked for US money. Cooperation with meter makers has led to redesigned cans to curb this.
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Los Angeles
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