Sceptics say Riyadh’s promise relies on untested technology and a ‘major caveat’ over exports. Yet, in a land with no shortage of sunshine, there is a ray of hope.
Ex-banker Mark Carney has 130 trillion reasons for optimism, but temperature-watchers have 1.5 to 2.4 reasons for pessimism. Greta’s a winner, coal’s a loser and ooh, did you try the alphabet soup yet?