Unfortunately for the existing mature systems in nature, the rapid expansion of the human bubble is destroying them. Unfortunately for us, we can't exist without them any more than a living person can exist without oxygen or a body can exist without a head. In this sense, it is actually a conceptual error to define the environment as the rest of the biosphere save humans, and think of ourselves as apart from it, since we can't exist without it.
Jacob Lund Fisker, Early Retirement Extreme: A Philosphical and Practical Guide to Financial Independence
environment