With Clinton and the Pope on board, the climate movement has wind in its sails | Bill McKibben

Tuesday's announcement that Hillary Clinton opposes Keystone XL might not be a miracle, but it's a step in the right direction

I'm not a Catholic, but credit where credit is due: at the very least Tuesday's arrival in America of the people's Pope coincided with a small brace of minor miracles on the climate front.

Early on Tuesday morning, Divest-Invest announced at press conference in New York that the new total of assets in endowments and portfolios divesting from fossil fuels has topped $2.6t. That's a 50-fold increase on last year's number - and the year before that, we had precisely one college on board, with an endowment of $13 million.