Population growth is now known.
It will reach its peak of 10-11 billion in 2100 and go down from there.
In almost every single country on earth, women are having less and less children.
No matter what religion, color or political system!
The population explosion came about in the 60-70s with new medications that reduced child mortality.
Instead of having 8 kids, and six of them dying, now 8 survived. All those 8 had their own families, getting 8 children, then 6, then 4, then 2....
We saw it first in the West-.. Women had fewer and fewer children as they actually made it to adulthood.
When parents know there is a high chance of their children surviving, they choose to have fewer, and spend more energy/money
on each child, so they will have a better life. Even in Africa..
The problem with Climate change is that it changes weather patterns, droughts, precipitation changes..
Where it was previously easy to farm, will in the future become uncertain.
Europes rivers will be less reliable, as glaciers are melting.
Midwestern US Farmland will have a hotter climate and less water.
Tundra in the north will start melting and releasing untold amounts of climate gasses.
Oceans acidification will ruin fish stocks.
But in 2100 approximately:
1 Billion in Europe
1 Billion in Americas
4 Billion in Africa
5 Billion in Asia
That is 3 Billion more Africans compared to today and 1 Billion more Asians.
And the "Old West 1st world" countries will be less then 10% of the world population.
Just imagine what your Grand children will face..
BILLIONS of Africans and Asians might have to move further North, to cope with the heat and find stable food supplies.
And your Grandchildren will know your generation knew about the risks and did f**k all to stop it in time.
Will they create Festung Europa and fight off anybody that desperately needs to migrate?
Or, will they let them in, knowing their Grandparents created the mess, and become minorities in their own countries.
Just to show the size of Africa:
.