This study is dangerously stupid.
We are rapidly running out of resources for survival.
Global fresh water demand will exceed supply by 40% by 2030 and 90% of topsoil is at risk of depletion by 2050.
We are already over capacity on fresh water demand for the amount of humans alive on this planet.
Top soil is what food grows in. Without top soil we can't grow food.
Billions of people will die this century. The planet cannot support any more people. Don't have kids.