A sad song of ice and fire

 

The Observer, 30 August 2020:

Global warming is worse than portrayed by Robin McKie (“Revealed: Earth loses trillion tonnes of ice in less than 30 years”, News). Nasa’s Goddard Space Flight Center estimates that the world has warmed by just over 1C since 1880, but temperatures are higher over land than water. Thus Europe has warmed by 2C, and the Arctic by more than 3C.

Loss of ice leads to loss of reflectivity, which aggravates the warming, but wildfires in the Arctic are also dirtying the snow, which increases heat absorption. This can only end badly. Melting of the permafrost has the potential to double the amount of methane in the atmosphere. If the Arctic seabed starts to give up the vast amount of methane stored as clathrates, global warming will become irreversible and it is game over for human civilisation. Politicians seem transfixed by this unfolding tragedy. Their latest excuse is the pandemic, but they have done almost nothing over the past 30 years. The Kyoto protocol was designed to reduce carbon emissions but since 1990, the baseline year for Kyoto, annual emissions have increased by 50% globally. The UK is hosting COP26 (the UN Climate Change Conference of the Parties) next year. We can only pray that the government recognises the awesome responsibility it carries.

Dr Robin Russell-Jones
chair Help Rescue the Planet,
Marlow, Buckinghamshire

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