The climate's not changing, you're changing

I told Ma and Pa that the PM is having a holiday in Hawaii while Australia burns.

The topic of coal came up. I said fare enough if we export it but we don't have to use it because we can move to renewable energy.

They say as long as we have cheap power it's ok. I groaned and dad says, "how is using coal changing the climate?" I said I'm not going to waste my time explaining it and they both say good lol.