Those who are scientifically uneducated think that 'Global Warming' just means 'everything gets hotter'.

Wrong!

'Global Warming' refers to the increase in the total heat energy in the system. As this increases, TURBULENCE increases. This means that things get BOTH hotter AND colder in different places. Also, while the NUMBER of storms stays about the same, the INTENSITY of them increases.

I'm sure others here can give more lengthy technical explanations, with all the maths, but I ascribe to the KISS school.