IN THE IPCC REPORT IT SAYS THAT IF WE ARE TO HAVE A 67 PERCENT CHANCE OF LIMITING THE GLOBAL TEMPERATURE RISE TO BELOW 1.5 DEGREES, WE HAD ON JANUARY 1ST 2018, 420 GIGATONS OF CARBON DIOXIDE LEFT IN OUR CO2 BUDGET; AND OF COURSE THAT NUMBER IS MUCH LOWER TODAY. WE EMIT ABOUT 42 GIGATONS OF CO2 EVERY YEAR.
AT CURRENT EMISSIONS LEVELS, THAT REMAINING BUDGET IS GONE WITHIN ROUGHLY EIGHT AND A HALF YEARS.