Global warming increases the mean surface temperature of the earth. The temperature increase versus preindustrial times (defined as the period 1850 – 1900) reached already some 1.2 degrees Celsius:
The Intergovernmental Panel on Climate Change regards 1.5 degrees Celsius as a critical value. This value should not be exceeded.
If the anthropogenic carbon dioxide emissions from fossil fuel use and land change continue, a hot house earth is possible and likely. A hot house earth would mean the end of human civilisation, the end of states. Therefore, an immediate stop of all anthropogenic carbon dioxide emissions from fossil fuel use and land change is necessary. This is only possible by a replacement of fossil fuels by renewable energies. Speed is the imperative.
All states of the world have to accelerate the deployment of renewable energy production capacities. The faster the deployment the better for the world. The key renewables energies are solar energy, especially photovoltaics, and wind energy. The SolarSuperState Association sees all states in a state competition. This is the SolarSuperState Competition.