If you still don't know, Sharknado is a low - budget movie produced
by U.S. network SyFy about an out - of - control
tornado that sucks up sharks from the
ocean, then rains them down on Los Angeles.
Extreme weather does not prove the existence of global warming, but climate change is likely to exaggerate it —
by messing with
ocean currents, providing extra heat to forming
tornadoes, bolstering heat waves, lengthening droughts and causing more precipitation and flooding.