Look, you assholes. Before you gloat about the deaths of 300 people and blame it on global warming, maybe you should show some research proving tornado activity is connected with global warming. Because there is no established connection. And this statement:

the null hypothesis should be that all weather events are affected by global warming rather than the inane statements along the lines of ‘of course we cannot attribute any particular weather event to global warming

is pathologically stupid. That’s the exact opposite of the null hypothesis. And this is exactly what global warming skeptics accuse you guys of — blaming any extreme weather, no matter what it is, on AGW.