Word: climatologists
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...prognosis? Right now, a fading El Nino and a burgeoning La Nina appear to be locked in a struggle for dominance. As Kevin Trenberth, an NCAR climatologist, put it last week, "It's a war out there." But even if La Nina wins the battle, as many scientists now expect, she'll have a hard time overshadowing her more famous brother. In June, owing in part to El Nino and in part to some longer-term warming trends, global mean temperatures reached an all-time high. The first six months of 1998 have already entered the record books...
...bunched in the 1990s. Does this reflect a long-term warming of the globe by carbon dioxide and other greenhouse gases, as many atmospheric scientists have contended? Or was the hot spell just a random, unexceptional fluctuation in the weather? A study published last week in Nature magazine by climatologist Michael Mann and colleagues from the University of Massachusetts, Amherst, may help melt away any lingering doubt about global warming. The scientists developed what amounts to a time-traveling thermometer. Applying innovative statistical tools to reams of evidence gathered from ancient ice samples, tree rings and coral fragments, they effectively...
...solve these and other puzzles, many scientists have moved beyond their computer models and headed into the field to collect real data. Last week Martin Ralph, a climatologist with NOAA's Environmental Technology Laboratory in Boulder, Colo., spent 25 hours in a P-3 "hurricane hunter" aircraft, flying into the teeth of a Pacific storm to measure temperature, wind and humidity. His goal: to figure out precisely how such storms build, move and interact with the coastline. Along with data from more than a dozen other NOAA experiments, Ralph's information will be fed back into the computer models...
...prime suspect is something known as the Pacific decadal oscillation. Since 1977, say researchers from the University of Washington, it has been locked into a mode that has made winters in the Pacific Northwest warm and dry, just as El Nino tends to do. But according to climatologist Nathan Mantua, the Pacific oscillation was in a different phase between 1947 and 1976, and as a result winters in Washington State were cold and rainy...
Glaciers around the world are melting and the sea level has been rising, says Kevin Trenberth, climatologist at the National Center for Atmospheric Research in Boulder, Colorado. Yet chemical companies and some members of Congress have complained that any guidelines could decrease the competitiveness of the U.S. in the global market and that any agreement calling for a similar reduction in pollutants from Europe and the U.S. would affect the U.S. more than any other country...