UN climate change conferences: Action on the hot air needed

Here’s a question that might be useful for readers who organise pub quiz nights, and for those who are interested in the future of our planet.

What links these places: Bonn, Buenos Aires, Marrakech, New Delhi, Kyoto, Montreal, Bali, Doha, Cancún, Paris, Katowice and Madrid? They have been the venues of some of the no fewer than 25 United Nations climate change conferences that have been held since 1995.