DATA analyses show that Arctic temperatures have continued the expected rapid cooling trend in the wake of recent La Nina conditions. The growth in multi-year Arctic sea ice has been considerable over the past nine years. The Chukchi Sea and the East Siberian Sea had little thick multiyear ice back in February 2008, but by February 2017 there was a lot. Greenland has also seen impressive gains in surface snow and ice mass. If the Arctic is the climate canary in the coal mine, as many alarmists like to claim, then we probably ought to start worrying about cooling.

As regards the entire southern hemisphere there has been no warming whatsoever and what is now glaringly obvious is that the Intergovernmental Panel on Climate Change (IPCC) has wildly overestimated its projected global warming for the future. The fact is the projections from the IPCC models in its various reports bear no comparison to what has been observed. It’s high time climate alarmists recalled the great physicist Richard Feynman’s warning: “It doesn’t matter how beautiful your theory is or how smart you think you are. If its projections don’t agree with observations your theory is wrong.”

Rev Dr John Cameron,

10 Howard Place, St Andrews.