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Global warming is causing a fundamental change in the worlds weather UN warns as Nasa reports hottest spring in history

16 June 2016 | Mitigation

The U.N. weather agency is warning of 'fundamental change' afoot in the global climate and continued warming, accompanied recently by unusually high rainfall in parts of the US and Europe.

'The state of the climate so far this year gives us much cause for alarm,' said Carlson.

The first four months of 2016 were the warmest globally in 136 years. 

'Exceptionally high temperatures. Ice melt rates in March and May that we don't normally see until July. Once-in-a-generation rainfall events. The super El Niño is only partly to blame. Abnormal is the new normal.'

Now dissipated, the El Nino weather pattern factored into 2016's record-setting heat, but meteorologists say greenhouse gases emitted from human activities remain the underlying cause. 

The Arctic in particular experienced abnormal heat, causing Arctic sea ice and the Greenland ice sheet to start melting unusually early, said Nasa.

Alaska recorded its warmest spring on record by a wide margin, and in Finland the average May temperature was between three and five degrees warmer than usual in most regions, according to data from the Finnish Meteorological Institute.

'The rapid changes in the Arctic are of particular concern.

'What happens in the Arctic affects the rest of the globe. The question is will the rate of change continue? Will it accelerate? We are in uncharted territory.' 

Strong El Nino temperatures did cause more than 53 percent of Australia to experience its warmest autumn on record.

May's exceptional warmth was accompanied by extreme weather events including abnormally heavy rains throughout Europe and the southern United States, as well as 'widespread and severe' coral reef bleaching.

Austraila's Bureau of Meteorology blamed warm waters for 'unprecedented' bleaching of the Great Barrier Reef.

The US National Oceanic and Atmospheric Administration (NOAA) is expected to announce complete global May temperature records in the coming days.

Recent predictions by US scientists anticipate that 2016 will go down as Earth's hottest year on record—on the heels of record-setting years in 2014 and 2015.

In late May, NOAA announced that April also registered its highest temperatures ever, marking the twelfth consecutive month of record heat.

Richard Betts, of the Met Office Hadley Centre and University of Exeter, is the lead author on the paper. 

He said: 'The atmospheric carbon dioxide concentration is rising year-on-year due to human emissions, but this year it is getting an extra boost due to the recent El Niño event. 

'This warms and dries tropical ecosystems, reducing their uptake of carbon, and exacerbating forest fires. 

'Since human emissions are now 25% greater than in the last big El Niño in 1997/98, this all adds up to a record CO2 rise this year.'

 

SOURCE: Mail Online