Question

how to help stop global warming at home

Answer 1

You must have heard of CFCs (Chlorofluorocarbons). Yes, these are the prime factors of global warming. From your TV to your refrigerator, everything emits CFCs in small or large amounts. 
There is no way to STOP global warming. Just like there is no way to stop wastage of water. You can only cut it off and regulate it by:-
1. Switching off fans and lights( use LEDs).
2. Getting a low CFC emitting refrigerator. You could also get a new one if its old.
3. Not burning leaves and other things in the garden. You can always use it as milch. Etc.
4. Spreading awareness.
Hope it helps!
HARRY POTTER FOREVER!