This is how the population must begin regarding global warming, experts said at a session at the annual American Academy for the Advancement of Science meeting here.
Although extreme weather events, from the creeping drought that scorched last years's corn crop to Superrstorm Sandy, are worrisome, automatically and simplistically tying them to the scientific phenomenon of climate change could be misleading
(2) Last year's drought in Texas, for example, could not be specifically tied to climate change, said John Nielsen Gammon, the Lone star State's climatologist.
Over the past century there has been an increase in rainfall -not a tendency toward dryness over most of Texas by about 10 percent. "Changing climate has not contributed to the lack of rainfall over the long term, as of yet," he said.
Last year's drought much like the famed Dust Bowl drought of the 1930s and another significant drought in the 1950s, is tied to rising sea surface temperatures in the Pacific Ocean, the weather event known as la Nina.
"Until we see a long-term decrease in rainfall in Texas, it will be hard to say that climate change has caused a decrease," Nielsen - Gammon said.
(3) Temperatures have rinse in Texas, meaning the increased rainfall is being evaporated at a more rapid rate, he added. But for the drought, which continues to seize more than half of the lower 48 states, het was a drought accelerant but not the main cause.
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Pertanyaan
1. Paragraphs 1 dan 2 are related in that they ....
A. Predict climate changes causal to the lack of rainfall