But if in fact they had come and intended to make
the planet unsuitable for the survival of our species,
they could not find anything more effective to do.

     They would poison the seas, the rivers, the land, the air.

     They would exploit the reserves.

     They would destroy the forests. And finally

     they would release a couple of new bacteria and viruses.

That's all.

Nothing else is required.


We do not need these malevolent Martians at all.

We are doing all this already ourselves.