Word: layering
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WHEN MY FAMILY made the pilgrimage north last summer, we stayed in the Chateau Frontenac, the colossal hotel Fantasy land of the Canadian town. It sits high atop a hill, majestic, with layer on layer of green copper spires rising toward the sky. It's world-renowned--any self-respecting tourbook will tell you that...
Faced with the most alarming report yet on the state of the earth's ozone layer, President Bush declared last week that the U.S. will halt production of ozone-destroying chemicals by the end of 1995. That's four years sooner than an international treaty dictates, but not as fast as environmentalists would like. "It's a modest improvement but by no means aggressive," says Liz Cook of Friends of the Earth in Washington...
...undiscovered reason for ozone to vanish over temperate zones as well? Maybe so. On Jan. 12 the ER-2 swooped south instead of north. Says Anderson: "We discovered to our shock that there was ClO all the way down to the Caribbean." It was a very thin layer with concentrations of only 0.1 part per billion -- but this was much higher than anyone had predicted...
...technology rescue the world from the mess that technology created? Isn't there a quick fix? Scientists know there isn't, but that doesn't stop them from musing about fanciful schemes for mechanically or chemically refurbishing the ozone layer in short order. By discussing and critiquing these ideas, researchers hope to educate the public about the dangers of climate engineering as well as learn for themselves the feasibility of various solutions...
...that a 20-fold improvement in the overall efficiency of this approach could make it feasible. Even so, tens of thousands of lasers would have to be designed, tested and built before the first CFC molecule could get zapped. If this is the best idea for reviving the ozone layer, an ounce of prevention is worth more than many tons of cure...