A common fable of the AGW belief system is that global warming “increases the total energy in the climate system and causes more storms.”
There are a number of things wrong with this statement, but I will just deal one of them right now. Storms are driven by differences in energy, not absolute energy.
Antarctica has terrible storms and minimal thermal energy. Phoenix, Arizona has few storms and maximum thermal energy. Venus has a uniform hot temperature across the entire planet, and almost no weather to speak of. It is clear that the total amount of thermal energy in the system is not the most important factor, rather it is the differences in temperature.
A powerful spring-time low pressure system developed across the North American Interior Plains on April 1. While moving into the Mississippi and Ohio Valley areas, a surge of very moist air intensified the storm further while there were sharp temperature contrasts between both sides of the system.
Similarly, there was a large tornado outbreak in 2008, during a very cold La Niña spring.
The theory claims that global warming will amplify temperatures at the poles. This reduces the temperature differences between equator and poles, and should decrease severe weather, not increase it.