Hail to Alfred Wong’s idea of transporting excess carbon dioxide out of the atmosphere by using the earth’s magnetic field as a conveyer belt (“A Stairway to Heaven?” June 2, 2007). If the scientist from the University of California at Los Angeles is correct, global warming could be managed in future at a sensible cost. But all the quotidian measures you make fun off in the opening paragraph of your article would still be required to offset the cost of transporting excess carbon dioxide into space. Switch the lights off. Stop using fossil fuels to make electricity. Get a fuel-efficient car. Do not fly. The list is much longer and much more tedious, too. But it is still with us for good.