Yes population growth is slowing down. However, it is not happening fast enough.
Do you think the current population and population projections aren't adding to the stress?
Pretty much everyone in the world desires to live by US and European standards hence global migration patterns.
Restrictions against migration and global resource distribution are the only reasons matters aren't already worse.
The chinese and indians dont pollute less and impoet our pollution to export us stuff because they want to. Believe me they want to consume just as much as we do. And they have every right.