It is a reason for many past disasters and it is getting worse. Earth's temperature has already raised 2 degrees Celsius. If it raises another 6 degrees you can see tsunamis over a mile high flooding California when tsunamis only a few feet high kill hundred thousands of people in Asia and there may be a second ice age, agriculture will be destroyed and people will rely on cannibalism.
If we keep polluting earth all that is cared for shall parish.
If we keep polluting earth humanity will end and our children may have their lives shortened.
If we keep polluting earth all the innocent life will be destroyed because of the mistakes ho-mo-sapiens have made.
This is real and it's time we stop destroying this planet before it is to late.