Word: trenberth
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Dates: during 1990-1999
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...strong will those storms be? That's harder to estimate, in part because a very big storm is in some ways its own worst enemy. "A hurricane has a noticeable cooling effect on the ocean," explains atmospheric scientist Kevin Trenberth of the National Center for Atmospheric Research (NCAR). Indeed, at a certain stage of its life cycle, a storm of a given size will stir up enough cold water to put a halt to its growth. At that point, scientists say, it has come into equilibrium. Maintaining that balance is especially hard, because if a hurricane stirs up too much...
...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...
...Nino in the past 20 years is statistically very unusual compared with that of the previous 100 years. Determining exactly which part of this unusual behavior is connected to global warming is still a scientific challenge, but that there is a connection should not be in doubt. KEVIN E. TRENBERTH, Head Climate Analysis Section National Center for Atmospheric Research Boulder, Colo...
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...
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