This summer’s heatwave through Europe and Asia was one of many extraordinary weather events, which along with forest fires, storms and flash floods, are becoming less extraordinary every year. Scientists are not claiming direct cause and effect for individual weather events, rather there is a very simple principle at work – CO2 and Methane put more energy into our weather systems. The more energy goes in, the more energy comes out, with greater frequency and intensity of extreme weather events.
The IPCC October 2018 report and the ‘hothouse earth’ report that rounded off the summer both re-state that climate change may become irreversible, but with the worrying twist that the tipping point may be closer than previously thought. There are more frequent warnings that we really could leave Earth permanently damaged for our species, perhaps within a few generations.
Such headlines grab the attention for a time because our hunter-gatherer brains are hardwired to monitor for immediate threats. However as the solution requires action outside of our control, what remains is often a sense of powerlessness.
Those of us who grew up in the shadow of the nuclear arms race lived with a similar sense of anxiety and powerlessness. Every childhood from the 1950s to the 1980s came with the realisation that the complete destruction of everything you love is an ever present man-made threat. The adult world is dominated by a love of abstract concepts – political ideology then, short term profit now – which become more important than life on this planet.
Yet, despite our species many flaws, we have to focus on the positives and believe our species has a strong enough instinct for self preservation to avoid complete catastrophe.