What will happen with greenhouse effect? More details!?

Question

If the earth continues to warm, either by the Greenhouse Effect or by natural warming, explain all the consequences that will occur.

Answer 1

With increasing temperature,ice caps will melt and sea level will go high.This will submerge many populated islands

Most of the big cities are near sea cost and will be under water

Crop failure due to temp change,food shortage

Answer 2

Global warming!!!!!!!!!!

Will happen