Copenhagen. (EFE) .- The climate change is unambiguous and greater certainty about the human influence ; cuts only releases strict can prevent irreversible damage and limit its impact to a “reasonable level.”
Those are the findings of the Concept of the Fifth Assessment Report Intergovernmental Panel on Climate Change (IPCC) presented on Sunday October 2 in Copenhagen and considered the most comprehensive analysis ever done on this area, with more than 800 authors and 30,000 scientific papers consulted.
To achieve the goal of limiting the temperature rise on the surface of the planet at the end of the century, two degrees above pre-industrial levels, cuts “substantial” issues and “sustained” it will take the next few decades-from 40 to 70 % between 2010 and 2050, to reduce “nearly zero” in 2100.
The IPCC report speaks of CO2 concentrations “to unprecedented levels in at least 800,000 years,” global warming and oceans, acidification of these, reducing the ice at the poles and an increase in extreme weather events.
Each of the last three decades has been warmer than previous, up “likely” temperature of 0.85 degrees from 1880 to 2012; while sea level has risen 19 centimeters from 1901 to 2010 and could rise between 26 and 82 at the end of the century.
“Many aspects of climate change and associated damage continue for centuries, even if they stand anthropogenic emissions of greenhouse gases. The risk of abrupt or irreversible change if it does increase the magnitude of warming, “warns the IPCC.
Those risks that arise are distributed on an” uneven “and are a “special challenge” in the case of the least developed, most vulnerable and also have hardly contributed to increased emissions countries, recognizes the report.
Hence the IPCC link limiting the effects of change Climate issues of “equality” and “justice” and to give a “key” role in reducing these risks to investment in adaptation, which can only succeed through international cooperation.
“Adaptation is important because it can be integrated with the objective of development and can help prepare for the risks that we are united by past emissions and existing infrastructure,” he said in a statement Vicente Barros, vice president of Group II IPCC Working.
Although the IPCC does not talk about specific figures, adding that “ambitious” measures to mitigate climate change would not affect the overall economic growth and consumption would be slowed only by 0, 06%.
Delaying the implementation of these initiatives in 2030 would significantly increase the technological, economic, social and institutional challenges, the report said.
“It’s technically possible transition to a low carbon economy, but what is lacking are appropriate institutions and policies. The longer we wait to act, the harder it is to adapt and mitigate climate change, “said Youba Sokona, co-chair of Working Group III.
The Fifth Assessment Report has been released piecemeal in several installments over 13 months, starting in Stockholm, where he presented the updated scientific basis whatsoever. and following in Yokohama (Japan) with measures of impact, adaptation and vulnerability, and in Berlin with mitigation
This report will be the central reference for the negotiations of the Framework Convention of the United Nations on Climate Change (UNFCCC) to reach a global agreement in Paris next year to replace from 2020 to the Kyoto Protocol.
first two IPCC reports were published in 1990 and 1992, while the third (1995) gave the key to Kyoto scientific information, and the fourth, released in 2007, showed enough evidence to say that global warming is unequivocal and established probable cause human activities.
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