Re:World Now Likely to Hit Watershed 1.5 °C Rise in Next 5 Y...
by imtringued on Thursday May 27, 2021 @07:07PM
(#27309727)
>CO2 levels aren’t even that concerning, both levels have been significantly higher
The sun grows stronger over millions of years (and it got colder over the last 200 years), however that doesn't matter because the earth is a balanced system where an equal amount of energy enters and leaves the system. The CO2 concentration will automatically adjust so that temperatures can fall within a narrow band.
Therefore it is completely unsurprising that CO2 levels have been higher in the past, they had to be higher to reach the same temperatures. If we reach historic CO2 levels today then we will also reach higher temperatures than in the past.
The sun grows stronger over millions of years (and it got colder over the last 200 years), however that doesn't matter because the earth is a balanced system where an equal amount of energy enters and leaves the system. The CO2 concentration will automatically adjust so that temperatures can fall within a narrow band.
Therefore it is completely unsurprising that CO2 levels have been higher in the past, they had to be higher to reach the same temperatures. If we reach historic CO2 levels today then we will also reach higher temperatures than in the past.