Everything of a certain scale had an impact on the planet's biosphere, some events led to extinction of entire species. The topic here is an ongoing "activity"

Everything of a certain scale had an impact on the planet's biosphere, some events led to extinction of entire species. The topic here is an ongoing "activity" of humanity which has set the course to make large areas of this planet uninhabitable. We could just continue our path and wait for this to happen or take action in our own interest as a species. > To be opposed to any changes to the planet whatsoever is to be directly opposed to human life. I'd say that sentence can be used to normalize any large-scale destructive behavior, if you replace "the planet" with "society" it could even be applied to destructive actions against humanity itself...