Loss of Primary or "Old Growth" Forests in the U.S.
Primary Forests, sometimes called Old Growth Forests, are simply areas of forest that have never been logged. The map above is a sad statement on our management of these forests. I am not against logging. I am not against using the natural resources of the Earth; however, we must do so wisely. The Primary Forests are full of species of plant and animal that, if lost, will never exist again. But that is only part of what we have lost and stand to lose through deforestation.
Permaculture teaches about the use of Zones (you can read more about that in this article). Zone 5 is a permanently "wild" area. It is vital to have these areas so that we can observe how nature functions without our interference. It is the model for the systems we are trying to emulate. If we lose this, we lose our teacher... not in some esoteric way, but in a very real, tangible way. We need to make sure we protect these areas, so we can observe the systems of nature. These forests are the prime example of a functioning sustainable ecosystem, and without them we lose thousands of years of information to guide us in creation of our own sustainable systems.
Finally, we need these places to experience God's creation untarnished by man. That alone should be enough reason.
With all that said, take a look at this map:
I get rather tired of politicians, celebrities, and even some scientists, who get all worked up about some small aspect of environmentalism and forget about the very large, tangible ways to protect the environment... they are worried about a speck of dust right next to the elephant in the room, so to speak.
If you truly care about the environment, please put your energy into something that has a tangible result.