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Bob Bingham Blog page.

A series of opinion pieces on, mostly climate change and related subjects to do with New Zealand.

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This will not stay in the Arctic.

15/11/2016

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The Arctic's temperature is way above normal for the time of year. The water is much warmer after the summer ice loss and there is a flood of warm air coming up from the South. 

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The unusually high temperatures reduce the temperature differential between the Arctic and lower latitudes and mean that the jet stream starts to slow down and meander bringing unusual weather to populated areas. ​​

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This is probably the fastest way that climate change will affect people in the heavily populated regions. Waiting for crops to fail when the temperature rises 2 C will take another thirty years and waiting for the ice to melt and raise sea levels is a slow business but this is quick. Reduce Arctic ice cover, temperature rises and straight away the jet stream moves course.  
It can bring excessive rain and floods or it can bring dry weather becoming drought, but in either case it is quick, it is regional and it is very unpleasant and expensive. 
These are the only things that governments understand about dealing with climate change.
https://earth.nullschool.net/#current/wind/isobaric/250hPa/orthographic=-30.30,58.62,256​


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Greenland and Antarctica losing ice faster than projected.

15/11/2016

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The IPCC have projections for the amount of ice that will be lost due to melting depending on the amount of CO2 added to the atmosphere. This worrying research by NASA using the GRACE satellite shows that we are currently losing more ice than has been projected in our two largest ice sheets.
Ice on land does not melt as fast as that in the sea and the worry is that the glaciers which terminate in the sea are melting from the underside even faster. At this stage this underside melting does not add to sea level rise, but these ice shelves hold back the massive inland glaciers from slipping into the sea with catastrophic consequences to sea level rise.

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Arctic sea ice stalled.

11/11/2016

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There are reports regarding the sensitivity of the world’s climate and how it can change rapidly and without warning. A tipping point which we might be watching now. 
​ This year the ice in the started out at record low levels, it did not match the minimum of 2012, and then it went all wrong in the regrowth of the ice. It is not refreezing into the areas that it should do and we are moving into new, frightening territory. If the ice does not form, the jet stream becomes unstable and Europe and America can have extremely unusual weather.

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Just in case we in the Southern hemisphere think we are safe, the winter sea ice has stopped increasing as it had been and we now have a record low.

I suggest that you watch Paul Beckwith explain the science and the implications.  ​https://www.youtube.com/watch?v=WOo1TmaZi2U  
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    Bob Bingham 

    Occasional blog posts on topical news items concerning the climate.  Please click the RSS feed to receive updates.

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