If you enjoyed seeing a dimmer New York skyline during the 2003 blackout, you may get some pleasure from the March 28 “Earth Hour.” On that date from 8:30 to 9:30 p.m., several large New York buildings will cut their lights as part of a 1,000-city effort to highlight the climate crisis (though its actual effect on global energy use will probably be negligible). Earth Hour is the World Wildlife Fund’s idea. Among the participants are the Empire State Building, Rockefeller Center, and the U.N., whose Secretary-General endorses it as a message of support for earth-friendliness to the December Copenhagen Climate Conference. Citizens are encouraged to take part, too. “So the question is, how the hell are we supposed to entertain ourselves without electricity?” ask the Martini Boys. ” The obvious answer: sex with ugly people.” Photo via NASA.