While many environmentalists still contend that "most" technology is detrimental to the environment, technogaians point out that it has been in humanity's best interests to exploit the environment mercilessly until fairly recently. This sort of behaviour follows accurately to current understandings of evolutionary systems, in that when new factors (such as foreign species or mutant subspecies) are introduced into an ecosystem, they tend to maximise their own resource consumption until either, "a)" they reach an equilibrium beyond which they cannot continue unmitigated growth, or "b)" they become extinct. In these models, it is "completely impossible" for such a factor to totally destroy its host environment, though they may precipitate major ecological transformation before their ultimate eradication. Technogaians believe humanity has currently reached just such a threshold, and that the only way for human civilization to continue advancing is to accept the tenets of technogaianism and limit future exploitive exhaustion of natural resources and minimize further unsustainable development or face the widespread, ongoing mass extinction of species. The destructive effects of modern civilization can be mitigated by technological solutions, such as using nuclear power. Furthermore, technogaians argue that only science and technology can help humanity be aware of, and possibly develop counter-measures for, risks to civilization, humans and planet Earth such as a possible impact event.