Acorn,
A brief snippet from the IPCC report showing how (according to them )controlling CO2 can precisely limit temperatures to 1.5 deg C or less.
This took me 1 minute to find.
Now how about doing some scientific reading for a change and answering my original question.
Obviously you never read any IPCC or more balanced scientific reports and just rely on the ABC for your knowledge of climate change.
"In practice, though, they mask a lot of complexity. This has become readily apparent as scientists have struggled to agree on a carbon budget for the 1.5C limit, as adopted within the
Paris Agreement on climate change in 2015. Because the world is already
most of the way to 1.5C of warming, the remaining budget is relatively small and, therefore, quite sensitive to the approach used.
Based on estimates made in the
IPCC’s fifth assessment report (
AR5), there would be around 120 gigatonnes of CO2 (GtCO2) remaining from the beginning of 2018 – or around
three years of current emissions – for a 66% chance of avoiding 1.5C warming. For a 50/50 chance of exceeding 1.5C, the remaining budget was a modestly larger 268GtCO2 – or around seven years of current emissions.
The IPCC’s new
SR15 significantly revises these numbers. It raises the budget for a 66% of avoiding 1.5C to 420GtCO2 – or 10 years of current emissions. Similarly, the budget for a 50/50 chance of exceeding 1.5C is increased to 580GtCO2 – 14 years of current emissions".
