Anyone who denies that global warming is human-caused is either Pollyanna-style optimistic or part of the plot.

Those whose fortunes are derived from the use of fossil fuels and refuse to think beyond the next quarterly report may get a reality sandwich when their expensive beach-front property starts being inundated by the rising sea levels.

But if you wait until Florida begins to disappear beneath the waves, it may be way too late!

Don Firth