For years, greens said adaptation—coping with climate change, rather than stopping it—was a bit like putting out a fire on the Titanic: desirable, no doubt, but the main thing was to change course.

But notably, he said nothing about putting a price on carbon - which is considered by most greens to be the key move to reduce global carbon emissions.

There's plenty of opportunity for exercise at the park's tennis courts, bowling and putting greens and wildlife enthusiasts can follow the walkways and cycle routes longside the River Rea.