I am 74 and acutely aware that every minute of every day our planet is hotter than when I was a boy, due to the burning of fossil fuels.
Storms, droughts and bushfires are all the worse, as predicted 30 years ago.
Yet the rate of burning of fossil fuels is still growing in 2019, as is the consequent heating.
The planet’s biosphere has already warmed by one degree since my youth, and it is predicted to be two degrees hotter by the time girls and boys now in primary school reach my age.
Take this process into future centuries and, as scientists warned last year, six or seven degrees of heating will end all life on Earth …