So one teenager who spouts off about protecting the world's environment is worse than a killing plague ?
Keeping the environment clean could also involve the human consumption of animals as a food source which has actually caused deadly viruses to effect humans in recent years.
I agree though that Greta needs to travel to India and China and spread the awareness of planet's environment to those countries which we are biologically connected to.
A sick polluted planet makes sick humans.
The planet is now trying to fight its own attacking virus which humans are deliberately responsible for.