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Wallace Smith Pioneer in Climate Change Smith Broker Dies | Science



Scientist Wallace Smith Broker, who raised early anxieties about climate change and popularized the term "global warming," died 87 years old. according to the press secretary of the Earth Observatory Lamont-Doherty. Kevin Creek said Broker was ill in recent months.

The broker brought "global warming" into general use with the 1975 article, which correctly predicted that raising the level of carbon dioxide in the atmosphere would result in marked warming. Later he became the first man to recognize what he called an ocean conveyor, a global network of influences that affect everything from air temperature to rain models. . "He was not cheated by the cooling of the 1

970s. He clearly saw the unprecedented warming that is currently playing, and understood his views, even when few would like to listen. " Oceanic current from North America to Europe. Warm surface water that extends to this flow helps to preserve the climate in Europe. (965 km) north of the Arctic Circle.

The broker said that his research suggests that the conveyor belt is a "Achilles' climatic system" and a fragile phenomenon that can quickly change for unknown reasons. It will only take a slight increase in temperature to avoid water immersion in the North Atlantic, he said, and this will lead to the stop of the conveyor. The broker said that it is possible that the warming caused by the accumulation of greenhouse gases may be sufficient for a sharp impact on the ocean currents. In general, Broecker has helped the public and politicians to report on the potential of climate change and unwanted "surprises" as a result of climate change, "said Professor of State of Pennsylvania Michael Mann.

The increase in greenhouse gases requires" bold, new national efforts to understand the functioning of the spheres the atmosphere, the oceans, the ice and the earth's biosphere. "

" We live in a climatic system that can jump sharply from one state to another, "Broecker reported to the Associated Press in 1997. Due to the resetting of the enormous "We play with an angry beast, a climatic system that has been shown to be very sensitive," he said.

"We play with an angry beast – a climate system that has been shown to be very sensitive," he said. ] The broker received the National Science Medal in 1996 and was a member of the National Academy of Sciences, and also worked as a research coordinator for Biosphere 2, an experimental habitat that turned into a research laboratory.

Broecker was born in Chicago in 1931 and grew up in a suburb of Oak Park

. Most of his time he spent at the University's lab at Palaiside, New York. He was known in the scientific community as "grandfather of the science of climate" and "dean of climatologists".

"His discoveries were fundamental to the interpretation of the history of the Earth's climate," Oppenheimer said. "No scientist was more stimulating to cooperate: he was a good instigator, ready to squeeze unpopular ideas like looping particles to compensate for climate change. But it has always been a two-way conversation, never boring, always educational. I will miss him. »


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