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Fires and climate change

Fires and climate change

by Chris, 17 July, 2018, 1 comments

The recent hot spell has seen a number of fires, not only in the UK but across the world (Arizona , Victoria Australia, Indonesia).  Spells of extreme heat (and drought) have been known throughout history but it would seem that with climate change / global warming extreme events have become more common.   Data show that the years of the 21st century are among the warmest on record - global air temperatures have risen by 1oC since the industrial revolution. Extreme temperatures have been recorded in many places across the globe.   Ouargla in Algeria soared to 124.3o F (51.3oC), Denver recorded at temperature of 105o F, Montreal recorded 97.9o F, Glasgow hit 89.4o F, Shannon in Ireland reached 89.6o F, Tbilisi (Georgia) soared to 104.9o F and parts of Pakistan are reported to have reached 50oC.   No record by itself can be ascribed to global warming but these and many other records across the globe are consistent with the extremes that can now be expected (more often) in a world that is warming - as atmospheric greenhouse gas levels increase due to human activity (we have entered the anthropocene). Hot and dry conditions mean that plant material can dry out quickly, so that a thicker layer of pant material / litter is formed - which provides significant fuel for fires.   Studies of some areas suggest that the increased Winter and Spring rainfall (again associated with climate change) encourages plant growth, creating more material for fires (when dry conditions obtain later in the year). Read more...

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