Tuesday, July 28, 2015

New York drowns in 100 years – Mail.Ru

Complete analysis of data on climate change in the past year has shown that in 2014 it broke all records on such parameters as the temperature of the land and the oceans, the amount of greenhouse gas emissions, as well as the height of the sea level. Detailed information can be found in a report published on the website of the National Oceanic and Climatic Research USA. In particular, it says that the concentration of carbon dioxide in Earth’s atmosphere in 2014 increased by 1,9 ppm (1 ppm equals one ten-percent share) and amounted to 397,2 ppm, which is the highest figure ever recorded.

The only region of the Earth where the average temperature was below the average in 2014 was the western part of North America.

oceans are less fortunate than the land – its surface temperature records were beaten everywhere, and most of the impact of global warming has experienced the north Pacific Ocean.

According to these data in the report, the Arctic and Antarctica are also continuing to warm rapidly, and the melting of snow and ice is becoming more rampant. In addition, increased and the number of tropical cyclones: if the average number of years 1981-2010 was 82 per year, in 2014 this figure reached 91.

A team of scientists led by Thomas Valea found out what it was threatened by such Climate Change seaside town. The researchers calculated that after 105 years the coastal US states may be at risk of flooding. Article scientists published in the journal Nature Climate Change.

Climate scientists have created a model to predict how likely two factors causing floods – heavy rains and storms – can be formed at the same time and cause serious problems.

As the scientists considered a potentially dangerous situation in which 120 mm of rain falls per day, and the height of the storm tide of 1.2 meters. Similar conditions – 114 mm of rain and a storm tide of 1.14 cm – in 1971 created a cyclone Doria, swept over the United States.

Scientists have developed three scenarios, the most optimistic of which reads like the weather will fall on the coast of the United States (in particular, to the area where the New York) after about 245 years, and repeat this frequency.

The most pessimistic scenario offers waiting flooding New York 42 years, and the third – in the opinion of scientists, the most realistic – after 105 years.

Residents of New York and the surrounding areas are not the only ones who suffer from binge elements: according to the authors, danger awaits the states along the Gulf Coast (Florida, Alabama, Mississippi, Louisiana Texas) and along the Atlantic coast (North and South Carolina, Georgia, Virginia, Maine and others).

The research group of Thomas Valya was not the first to predict “Flood” by the end of this century . Reports of the disastrous consequences that would entail the melting ice and rising sea levels, and publish the working group on the implementation of the Arctic Monitoring and Assessment. According to research conducted by the organization, under the threat of flooding are the Maldives and the Bahamas, London, Shanghai, Malaga, Tripoli and other coastal cities.

The worst thing would have to Venice – by 2100, the city may disappear completely from the face of the Earth and unfit for life as an attractive place for tourists could be as early as the 30th – 40th years of this century:

if before the area San Marco (the lowest place in the city) goes under the water about 9 times a year, but now this phenomenon occurs 10 times more often. Italian authorities are developing measures to save the city – is the purpose of, for example, the project MOSE.

As for Russia, there is worry about the inhabitants of the Far East, Siberia and St. Petersburg – This was stated by Dmitry Kokorin, an expert from the Russian branch of the World Wildlife Fund. However, Lev Karlin, rector of the Russian State Hydrometeorological University, believes that, in fact safe Petersburg: “We have during the normal flood water level in the Neva and the Gulf of Finland jumps to tens of centimeters and even a couple of meters. What?

We start flooding is considered dangerous if it reaches a level of 160 cm and above. In general, any blown panic that nothing is confirmed. I think that St. Petersburg will be a long time and worry about flooding until it is.

In any case, prediction of global climate change – a task complicated and ambiguous. While some scientists say about the catastrophic consequences of global warming, while others predict the onset of a new ice age, and pretty soon – within the next two or three decades. Reasoned climatologists, apparently, only time will finally be able to.

Author: Jan Hlyustova.

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