Carbon countdown clock: how much of the world's carbon budget have we spent?
Total carbon budget remaining in tons (CO2-e), if we want to do our fair share to avoid 2° warming
Total carbon budget used since 2013, in tons (CO2-e)
total carbon budget in tons (CO2-e)
The total carbon budget in tons (CO2-e) we have since 2013 to avoid 2C warming, according to the CCA
years, days, hrs, mins, secs
Until we will exceed the CCA's carbon budget, if our emissions stay as they are now
How is this calculated?
One way of looking at emissions targets is as a fixed budget amount, or quota. This countdown shows one estimate of how long it will take to reach an amount of greenhouse gas emissions beyond which two degrees of warming will be likely. The total carbon budget remaining figure of 2900 GtCO2-e (within a range of 2550 to 3150 depending on various factors) is the value required to limit total human-induced warming to less than 2°C relative to the period 1861–1880 with a probability of >66%. Full details are in the IPCC Synthesis Report here. The rate of emissions is based on the most recent year of global emissions, and assumes no increase or decrease in emissions year-to-year as a 'business as usual' scenario