by Sam Mitchell | Mar 6, 2021 | Climate Change
I am inaugurating a series of posts on climate change for people who want to know what the key facts are, and what scientists think is a true picture of how the climate system works. “True” as defined here means that the description provided will be shown to be valid...
by Sam Mitchell | Mar 6, 2021 | Climate Change
Overview … climate change is a permanent feature of planet Earth; any human impact that might be occurring is probably too small to discern against a background of natural variability (Singer, p. 118. There remain many uncertainties about how the climate system...
by Sam Mitchell | Mar 6, 2021 | Climate Change
There ae two reasons. First, the models don’t match what has actually happened, and second, the Summary for Policymakers (SPM) misrepresents what the science says as reported in the IPCC’s AR5. The theoretical models used to predict future warming are not consistent...
by Sam Mitchell | Mar 6, 2021 | Climate Change
The foundation for government climate policy worldwide is The United Nations Framework Convention on Climate Change (FCCC) , an international environmental treaty addressing climate change, negotiated, and signed by 154 states at the United Nations (UN). Its policy...
by Sam Mitchell | Mar 6, 2021 | Climate Change
The first thing to note about the temperature of the Earth’s surface is that it has been variable ever since there was an atmosphere, and these variations have had no significant relationship to the concentration of CO2 in the atmosphere. Historic data show CO2...
by Sam Mitchell | Mar 6, 2021 | Climate Change
The short answer is not much, certainly not enough for anyone to worry about. Furthermore, the temperature change observed is nothing out of the ordinary. In the past 120 years since 1900, there has been a 1.2 degree Celsius increase in global temperature (Lindzen,...
