viernes, 26 de enero de 2018

2017 was the warmest year without El Nino effect, says United Nations | The Indian Express

2017 was the warmest year without El Nino effect, says United Nations | The Indian Express

2017 was the warmest year without El Nino effect, says United Nations

Seventeen of the warmest 18 years since records began in the 19th century have now happened since 2000, confirming that ever more greenhouse gases are driving up temperatures

By: Reuters | Oslo | Published: January 18, 2018 9:32 pm
2017 warmest year
Average surface temperatures in 2017 were 1.1 degree Celsius (2.0 Fahrenheit) above pre-industrial times. (Photo for representation)

Last year was the second or third warmest on record behind 2016, and the hottest without an extra dose of heat caused by an El Nino event in the Pacific Ocean, the United Nations said on Thursday. Average surface temperatures in 2017 were 1.1 degree Celsius (2.0 Fahrenheit) above pre-industrial times, creeping towards a 1.5C (2.7F) ceiling set as the most ambitious limit for global warming by almost 200 nations under the 2015 Paris climate agreement.
Last year was indistinguishable, so far, from 2015 as the second or third warmest behind 2016, making 2017 “the warmest year without an El Nino”, the UN’s World Meteorological Organisation (WMO) said. Temperatures in both 2016 and 2015 were lifted by an El Nino, a natural event which can disrupt weather patterns worldwide every few years and releases heat from the Pacific Ocean into the atmosphere. “When even the ‘colder’ years are rewriting the warmest year record books, we know we have a problem,” said Professor Dave Reay, chair in carbon management at the University of Edinburgh.

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