Has anyone given it a thought, that all of us living in this planet are doomed for extinction caused by a natural disaster and there is nothing anyone can do about it?

Through infinite lengths of time our planet has gone through cycles of disaster and recovery. Live and death.

The ice age, the sudden disappearance of dinosaurs and other species, the floods, the hurricanes, the meteors...

There is a continuous dance of the Earth crust, which at three inches per century may seem insignificant to us, but which with the passage of time it will make a much different world than the one we now know.

How much of that is our doing?

Though we are but a speck of dust in the infinite space of our universe,  we as habitants of this planet do share a responsibility to not hasten our own destruction.

If reliable studies have hinted of a link between chemicals and the destruction of our ozone layer, then why not do our part to help protect our environment?

:)