Climate scientist Dr. Murry Salby explains why man-made CO2 does not control climate

In a highly recommended lecture, Dr. Murry Salby, professor and Climate Chair at Macquarie University, Australia, debunks the popular myth that man-made CO2 controls global temperature. Dr. Murry proves from observations the opposite is true: natural changes in global temperature instead control CO2 levels and that man-made emissions do not control either atmospheric CO2 or the climate. Dr. Salby also debunks the notion that changes in greenhouse gases control ocean temperatures, showing that the huge heat capacity of the ocean means that a tiny ocean cooling of < 0.0005C could cause all atmospheric warming of < 1C observed since pre-industrial times. Dr. Salby shows why nature, not man, is the cause of the increase in CO2 by demonstrating that only the integral of temperature changes explains the changes in atmospheric CO2, not a slow steady rise in man-made emissions.

Significant slides from the presentation are below:

Popular myths

A cooling of the ocean of < 0.0005C could alone account for a 1C rise in atmospheric temperature

A change in radiative forcing due to doubled CO2 is much smaller than the errors in Earth's energy budget assumptions

 

Change in surface temperature ["surface conditions"] causes changes in atmospheric CO2, not the opposite

Real world observations show atmospheric CO2 levels result from natural temperature changes not man-made emissions. CO2 does not cause changes in global temperature 

 

Dr. Judith Curry on a prior talk given by Dr. Salby