Three-Quarters of Climate Change is due to Human Activity

Greetings and apologies for the absence! This post is actually a ‘recycling’ (forgive the irony!) of my reply to Roger the Surf’s recent comments regarding the evidence for anthropological causes for Climate Change.

This study released on 4th December (and hot off the press) is from an independent source, two Swiss climate modellers, and is reported in the link below by the highly respected Scientific American. The researchers suggest that only a quarter of natural climate variability has contributed to global temperature rises. At least 74 per cent of temperature rises observed since the middle of the last century are, they conclude, directly attributable to human produced greenhouse gases, including CO2. It appears they have used a new attribution method for calculating this. The interesting thing is that the results seem to suggest that the rise in surface temperatures since the pre-industrial age might have been greater by now had it not been for the presence of certain aerosols in the atmosphere. Also, their study appears to strongly undermine the sceptic argument that changes in solar radiation are largely responsible for rises in mean global temperatures.

Check out the link here for further details:

Roger, if you are reading this – thank you very much for your comments and please keep them coming. I always enjoy a little healthy debate!

Until the next time…

Owen Law


About Owen Law

My pen-name is ‘Owen Law’ (real name: Nicholas Davies.) I’m a science fiction writer specialising in dystopian/apocalyptic visions of the future. I’m from Shropshire, England (on the borders with Wales) and I’m in my forties. I have a background in public services and training. I’ve been working on my first novel, Dragon Line, since 2008. I’ve also written several short stories, one of which you can find on this blog (‘Matilda Leviathan‘). I now reside on the border of Shropshire and Wales, and my interests include writing (of course!), current affairs and environmental issues.
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