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Warming 'worst case' must be considered say experts

RATE THIS! +48
Posted in Science on 15th Jul, 2015 12:01 AM by AlexMuller

Climate risks should be assessed in the same way as threats to national security or health according to a report. For too long the world has seen rising temperatures as a problem of predicting long range weather forecasts. The authors says that that leaders must focus on the 'worst case scenarios' and how likely they are.

 

The report has been compiled by an international group of scientists and experts in risk. In a foreword to the new study, UK foreign minister Baroness Anelay says that previous responses to the threat of climate change have been far too narrow.
 
"When we think about keeping our country safe, we always consider the worst case scenarios. That is what guides our policies on nuclear non-proliferation, counter-terrorism, and conflict prevention. We have to think about climate change the same way," she said.
 
The report underlines, once again, the direct risks that warming poses. It says that at current rates of carbon emissions, a temperature rise of 4 degrees C is "as likely as not" by 2150.
 
This would lead to significant impacts with lethal levels of heat stress, drought and crop failures among a host of other negatives. But the report goes on to stress that the biggest threats of climate change may come from what are termed "systemic risks".
 
The study says that these come from the interactions of people, markets and governments. For instance, climate change may significantly increase the risk of extreme events impacting food production in the second half of this century.
 
"If policy and market responses amplify rather than mitigate the shock," the report says, "a plausible worst-case scenario in the present day could produce unprecedented price spikes on the global market, with a trebling of the prices of the worst affected grains."
 
The report also warns that the security implications of high levels of warming are considerable. Growing populations competing for resources could threaten the stability of countries that are currently considered developed.
 
Migration, the authors warn, could become "more of a necessity than a choice". Politicians needed to consider the bigger picture, said Fiona Morrison, from the Institute and Faculty of Actuaries, a co-sponsor of the report.
 
"One of the most important goals of climate change policy should be to recognise the possibility of very bad outcomes and a full risk assessment of all possibilities is the best way to achieve this. As actuaries, we see good decisions as being based on exploring difficult scenarios and using this information to mitigate risk."

Tags: climate changeglobal warmingclimateenvironmentCO2

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Comments

Author: Guest
Posted: 2015-07-15
+1
For so long climate change was a controversial topic with a considerable impact from those who denied it completely - this is changing and hopefully more will be done faster to work towards the worse case scenario
1 Replies
Author: Guest
Posted: 2015-07-15
+0
Recognising the worse possible outcome is one thing, working towards measures to deal with it could prove unrealistic at this stage. We may just need step by step approach in the right direction Reply
Reply
Author: Guest
Posted: 2015-07-15
+0
For so long climate change was a controversial topic with a considerable impact from those who denied it completely - this is changing and hopefully more will be done faster to work towards the worse case scenario Reply


 

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