オゾン層保護条約、地球温暖化「減速」の助けに メキシコ研究


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[November 11 AFP] a part of “slowdown of global warming” referred to as that for which the skeptics of global warming back up an own opinion The paper it is supposed that was induced by one of the environmental treaties which was most successful in the world was announced by the English science journal “Nature geoscience (Nature Geoscience)” on the 10th.
The atmospheric physicist of ? Mexico national Local Autonomy College (National Autonomous University of Mexico), According to the paper which the research team led by Mr. Francisco Estrada (Francisco Estrada) announced It is also said that “the Montreal Protocol (Montreal Protocol)” of U.N. (UN) upon which it was decided for the purpose of the phased reductions of substances, such as industrial gas which destroys the ozone layer which protects the earth, is applies the small brakes to global warming simultaneously.
? — if this protocol does not exist, and the skin temperature of the present earth was probably high about 0.1 degree, a research team will point out.
The paper says, “Although it is a paradoxical talk, a direct artificial factor is seen by the slowdown of warming in recent years which the skeptics of global warming show as a proof to which man cannot affect a climate system.”
The Montreal Protocol which was adopted in ? 1987 and went into effect in 1989 has imposed a duty of reduction of the chemical substance groups containing chlorine and bromine upon the contracting State.
These substances currently used for an aerosol spray, a solvent, a refrigerant, etc. exist in the stratosphere, and destroy the ozone layer which absorbs the ultraviolet rays leading to cancer.
Moreover, since there is a thing with the character which absorbs solar heat powerfully, this kind of some chemical substances become unexpectedly intense greenhouse gas.
A research team indicates that the phased reductions of these chemical substances in which the effect began to appear in ?1990 s became the progress which is visible though it is small in the battle with a climate change.
In 1998 ? 2012, the mean temperature of the whole earth rose at a rate of an average of 0.05 degree per ten years.
Compared with 0.12 degree of the average increasing rate per ten years for the past 50 years, this value is very small and is not in agreement with the amount of discharge of the greenhouse gas which the upward tendency follows.
A climate change is the proof originating in a natural factor, a defect is among the voice of the environmental protection which asks for reduction of the amount of fossil fuel discharge, and skeptics claim “stagnation” of ?, as a result warming for 15 years that it is shown that it is equal to fraud.
In this paper, ? research team performed statistical comparison of the carbon discharge in the 20th century, and warming.
If whole in the 20th century, temperature rose by 0.8 degree.
(c)AFP
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