Firstly, if Earth became Hotter, Moon may start getting burnt in between, it may have to start wearing fire protection suit.
Secondly, if Earth became Hotter, Earth may start showing off in front of other planets, they may throw bucket loads of water on Earth.
Thirdly, if Earth became Hotter, Earth may start sweating profusely, all of us may be swept away in the floods.
Fourthly, if Earth became Hotter, Earth may start playing around with its flares, other planets may start getting burnt.
Fifthly, if Earth became Hotter, people who love living in colder regions may start living inside refrigerators.
Lastly, if Earth became Hotter, all humans and animals may leave in search of a different planet, Earth may be left all alone.