Up and up the temperature goes, where it stops nobody knows. We are all climate gamblers now, and experts at the Massachusetts Institute of Technology have produced a stunning illustration of the risk posed by global warming. Their "greenhouse gamble" wheel of misfortune shows the chances of various temperature rises by the end of the century if carbon pollution continues at current rates.
Current favourites are 4-5C and 5-6C, at odds of 3-1, with 6-7C a decent outside bet at 7-1. And what are the chances of a rise of less than 3C, and with it a chance of something near a habitable planet? A shirt-losing 100-1.
Meanwhile, the odds of a ruinous 7C or more by 2100 are just 11-1. Gulp.
• Eco Soundings is our regular bite-sized blog series. It appears every Wednesday in the Guardian newspaper
