(Rinnovabili.it) – The global warming this year will exceed the psychological threshold of 1 ° C above pre-industrial levels, while in 2014 the levels of CO2 in the atmosphere have exceeded the critical threshold of 400 ppm (ppm). These two pieces of news, are just out together. Sources: British Met Office and World Meteorological Organization. Representing a siren call to the whole world, when there are just over two weeks at COP 21 in Paris. During that meeting, delegates from 196 countries will seek agreement to limit the rise in global temperatures by 2100 to below 2 ° C. At the moment, there are succeeding, and there is a growing skepticism about the possibility that the UN climate conference to produce a sufficiently ambitious and binding international treaty. All studies that have analyzed the commitments of the participants on climate change, have come to the same conclusion: national plans for cutting emissions are insufficient . If not will be reviewed as soon as possible, global temperatures will rise by 3 ° C by the end of the century, the level at which the impact of extreme weather events could be really catastrophic. This year, playing against attempts to limit the damage to ourselves products, there is also El Niño , five-year climatic phenomenon that occurs in Pacific with devastating effects on poor countries. “We had similar natural events in the past – said Stephen Belcher, director of the Met Office Hadley Centre – but this is the first time that we reach the roof of 1 ° C and it is clear that It is the human influence to lead our climate into uncharted territory. ” “Every year we say that time is running out – said the Secretary General of WMO, Michel Jarraud, in a statement – We must act NOW to reduce dramatically emissions of greenhouse gases, if we want to have a chance of keeping any increase in temperature down to manageable levels. ” The capital letters used in an official statement, shows the urgent need that the organization tries to talk to world leaders ahead of COP 21. The contribution of El Niño will cause the wall of 400 ppm CO2 in the atmosphere will be permanently exceeded in the coming months. This means “higher global temperatures, an increase in extreme weather events such as heat waves and floods, melting ice, rising sea levels and increased ocean acidity. This is already happening, and we are moving into uncharted territory at a frightening speed “, he has specified Jarraud. Levels of two other important anthropogenic greenhouse gas, methane and nitrous oxide (NOx), continued to increase in 2014, reaching respectively 1,833 shares per billion (ppb) and 327.1 ppb.
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