ALERTA SOBRE ARTICULOS (en inglés)

Sobre el cambio climático


Broecker, Wallace S.
THE ONCE AND FUTURE CLIMATE
(Natural History, vol. 105, no. 9, September 1996, pp. 31-38)

Scientists are finding that Earth's climate has changed at times far more rapidly than they first thought possible. Sudden shifts of five or more degrees Celsius in a few decades are being found in the geologic record. Broecker advances the theory that the sudden changes occur when two factors coincide -- changes in the salt concentration of the North Atlantic and changes in the trade winds blowing across the Pacific Ocean.

Moore, Curtis A.
WARMING UP TO HOT NEW EVIDENCE
International Wildlife, vol. 27, no. 1, January/February 1997, pp. 21-22, 25)

Moore cites a mountain of new scientific evidence that is convincing even skeptics that global climate change has occurred and that the future of life as we know it is at risk. The majority of scientists now say that global warming can be directly linked to human pollution.

Murota, Yasuhiro; Ito, Kokichi
GLOBAL WARMING AND DEVELOPING COUNTRIES
(Energy Policy, vol. 24, no. 12, December 1996, pp. 1061-1077)

The authors created a computer model and fed it economics, population, natural resources, and environmental data. The model showed that if developed countries were to help developing countries to industrialize rapidly, their poverty would be mostly ended by the year 2100 and greenhouse gas emissions would be reduced.

TURNING UP THE HEAT
(Consumer Reports, vol. 61, no. 9, September 1996,pp. 38-44)

The article presents a concise and informative update on causes and possible effects of global warming; outlines and rebuts the key arguments against global warming; and explains why and how the United Nations-sponsored International Panel on Climate Change (IPCC) recently formally accepted the premise that human behavior is changing the Earth's climate.

Weart, Spencer R.
THE DISCOVERY OF THE RISK OF GLOBAL WARMING
(Physics Today, vol. 50, no. 1, January 1997, pp. 34-40)

Although a Swedish scientist formulated the greenhouse-gas theory in 1896, the author of this article argues that not much work was done on its implications until accident and new techniques led researchers in the 1950s to accept the idea that the burning of fossil fuels could warm Earth and change climate.

White, Robert M.
CLIMATE SCIENCE AND NATIONAL INTERESTS
(Issues in Science and Technology, vol. 13, no. 1, Fall 1996, pp. 33-38)

The growing scientific consensus that human activities are responsible for a warming of Earth that could drastically change the climate has prompted the United States to endorse binding reductions in greenhouse gas emissions and brought a new urgency to international negotiations on what to do about the problem, according to Robert M. White. He is a senior fellow at the University Corporation for Atmospheric Research and was the first administrator of the National Oceanic and Atmospheric Administration.

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A more comprehensive Article Alert is offered on the international home page of the U. S. Information Agency: http://www.usia.gov/admin/001/wwwhapub.html

Cuestiones Mundiales
Publicación Electrónica del USIS, Vol. 2, No. 2, Abril de 1997