Which of the following best describes what will happen to Earth's climate if greenhouse gases continue to be produced at the current rate? Which of the following best describes what will happen to Earth's climate if greenhouse gases continue to be produced at the current rate? The polar ice caps will melt and the sea levels will rise causing more flooding. Some coastal cities could become covered by water. The climate will become colder causing some organisms to become extinct and life to change. The polar ice caps will melt and the sea levels will rise causing more flooding. Some coastal cities could become covered by water. The climate will become warmer causing some organisms to become extinct and life to change. The polar ice caps will become larger and the sea levels will lower causing the oceans to dry out. Some coastal cities could become dry plains. The climate will become warmer causing some organisms to become extinct and life to change.