On Wednesday, August 8, 2018 at 12:11:12 PM UTC-6, Chris.B wrote:

On Wednesday, 8 August 2018 13:03:40 UTC+2, Gary Harnagel wrote:

On Tuesday, August 7, 2018 at 7:40:03 AM UTC-6, Quadibloc wrote:
The tipping point is in sight:

https://www.cbc.ca/news/technology/w...port-1.4775649

John Savard

http://climatemodels.uchicago.edu/modtran/

T_offset = 0, T_ground = 298.52 K, Upward heat flux = 298.52 W/m²

T_offset = 2, T_ground = 301.7 K, Upward heat flux = 307.44 W/m²

Conditions are CO2 = 400 ppm, Tropical region, No clouds

Clouds hold the heat in, but reflect more solar energy.

The model also shows that DOUBLING the CO2 concentration to 800 ppm
has a minimal effect on outgoing heat:

T_offset = 0, T_ground = 299.7 K, CO2 = 800 pp,, Upward heat flux = 295.2
W/m²

To get the UHF back to 298.5 W/m², increase T_offset to 0.75 K.
So doubling the CO2 level increases the ground temperature by 2 K.
That doesn't look like a "tipping point."

Don'tcha just love oversimplification for effect?
Is Big Carbon's pocket money allowance taxable?

Using simplified models for a sanity check on "more complex" one is a valid
scientific operation.