I think the earth has reached it's maximum carrying capacity. We humans are so insensitive about our environment. We keep breeding and building infrastructures and cutting down trees and polluting the environment (air, water, soil) without even realizing that we are killing the only planet that we can live in. It is evident already that the earth cannot support the growing population -- we have climate change, melting of the glaciers, animal species getting extinct, pollution, strong typhoons, massive earthquakes, less and less available resources, all because we humans are selfish. People should realize that we have only the earth, nothing else, not Mars, not Kepler 62-F, nothing. Just this one Earth. Sure you could say, we can just all migrate to Kepler 62-F, but by the time that planet is proven to be really inhabitable, we would probably all be long gone not by old age but because of the diseases brought about by the increasing degradation of our own planet.
So, no. The Earth cannot support anymore the growing human population. We don't even have enough food in our country anymore. And this is just our country with 103.3 million people as of 2016.