Over 17 000 delegates are expected to fly into Doha, Qatar, for talks on climate change over the next two weeks.
Some commentators are confident that the talks could make real progress towards cuts in carbon emissions.
Others are sceptical.
We can’t help cringeing at the irony of all those air miles, the factt hat Qatar has among the highest emissions on the planet, plus the football World Cup which will take place there in 50 degree C heat in 2022, with its air-conditioned stadiums…
Find out more about the climate change talks here.