Even if you believe that CO2 is causing a climate emergency there is absolutely no need to try and reach net zero. The fact is that atmospheric CO2 levels will start to fall even if we carry on emitting most of the CO2 we are currently emitting.
The reason is due to something called the CO2 “sink rate”. It has been observed that the more CO2 there is in the atmosphere, the more quickly nature removes the excess. The NASA studies showing “global greening” in satellite imagery since the 1980s is evidence of that. According to Roy Spencer each year nature removes an average of 2% of the atmospheric excess above 295ppm.
So now we know that net zero is not only massively expensive and impossible, but it is also quite unnecessary.
Amongst the people who respond to doubter sites like this one, Roy Spencer is well known. I have watched many of his doubter papers be rejected by scientists for their intentional errors to reach a doubter result, rather than follow the data to see where it leads.
ReplyDeletehttps://skepticalscience.com/skeptic_Roy_Spencer.htm