World in collision with mass extinction?

"...overfishing of our oceans and depleting fish stocks to dangerous low levels; ...toxins, emissions and pollution...making the hole in the ozone layer bigger and causing more harmful sunrays to penetrate...thus warming the oceans, melting the ice, and threatening animal's environments; ...rainforest being bulldozed...to create grazing land for cattle and commercial development, thus destroying natural environmental structure and animals habitats...animal species going extinct, and more."