It is now possible, for example, to get a bag of fresh fruit with a Happy Meal instead of fries.

NPR: Rabid Reader: 'Fat Land' and U.S. Supersizing

Our meal of a kids-sized grilled cheese with vegetables, black bean veggie burger and chunky lobster roll, washed down with a milk, Peak Summit ale and a Painkiller cocktail (rum, coconut cream and fruit juices) respectively, left everyone happy.

BBC: The kid-friendly perfection of Nantucket

Yet while most people have read of the threat of rising sea levels and melting polar caps, or experienced a nagging guilt when booking a cheap flight or buying exotic fruit imported from the other side of the planet, hitherto global warming has largely been something we are happy to leave to the scientists to worry about.

CNN: Six degrees of devastation