The girl who silenced the world for 5 minutes

A few days ago I sent you a video of all the atomic nuclear blasts that have happened for a certain period of time to before 2000, not counting recent ones. We can easily see who the biggest culprits are and then we wonder why the ozone layer was diminishing, why there is more radiation, more cancer, more environmental problems such as violent weather in way of storms, floods, etc.  Well here's a little gal that speaks out at the U.N.  Although applauded, has it fallen on deaf ears? Are humanity and all other living things quietly being wiped out in the name of "progress", "defense" and industrial greed, such as fracking, documented to poison the soil?  Let's face it, it is serious!
Thanks Heidi