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The climate records only maintain rolling in. Month after month, we keep hitting above-average temperatures, defining new records that are only to be broken yet again further down the line. This October, however, has blasted allothers out of the water. Not only will it pretty much assure, with a 99.9 percent likelihood, that 2015 will be the worlds hottest year ever recorded, but it was also the first month to outstrip NASAs average temperature data by more than 1C( nearly 2F ).
Rather than use pre-industrial levels as a baseline, NASA utilized an average from between 1951 and 1980 as their starting point, which already includes a certain degree of global warming. Even so, this October smashed that median. In fact, it was so hot, it goes down as the warmest month ever recorded in NASAs entire database. This basically induces certain the prediction that 2015 “il be seeing” median global temperatures breach 1C of warming since pre-industrial levels.
Probability that 2015 will be a record warm year now 99.9% based on Jan-Oct GISTEMP data. pic.twitter.com/ glfKYAha3X
Gavin Schmidt (@ ClimateOfGavin) November 17, 2015
According to NASAs data, the global average temperature for October of this year was a shocking 0.2 C( 0.36 F) warmer than for the same period last year. All this warming has meant that the last day the world find a record cold year was in 1911. Unfortunately, 13 out of the 15 hottest years on record have all happened since the year 2000. It now seems that rather than slowing down, were instead driving full steam ahead to the point at which countries around the world will no longer be able to recover.
The reason behind these records is depressingly familiar, chiefly being down to human-driven climate change. Increases in greenhouse gas emissions are clearly having the predicted effect of warming not just land temperatures, but also the oceans too. Things havent been helped by one of the worst El Nino events in recorded history. According to the World Meteorological Organization, El Nino still has yet to reach its peak, which should be happening over the next few months and could see weather patterns change even more dramatically.
All these records are likely to precede another that countries around the world will reach next year. It lookslikely that atmospheric concentrations of carbon dioxide are going to rise above 400 proportions per million, and will probably remain that route for our lifetime, taking decades to start falling again. This not only contributes to the slow cook of countries around the world, but also to ocean acidification, avoiding molluscs from constructing their shells. Such temperatures alsocontribute to theglobal coral bleaching event currently in progress from Hawaii to the Caribbean.
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