First, the background. It should be common sense to anyone that our biological footprint on this earth is countered by the fact that the earth itself replenishes many resources. For example, we eat a fish, and another fish is born to replace it. We release some carbon dioxide, and it is absorbed by growing plants. And so on. However, since the 1970s, humanity has been using earth's resources at a faster rate than they are replenished. This year, we went into the red on August 13, the earliest ever.
Now, a caveat: this is a bit of an oversimplification. It's not like every single fishery and every single carbon sink hit D-Day at the same time. Earth Overshoot Day is simply the point where the average use of all our renewable resources outstrips the productive ability of the planet for a single year.
This is an important concept. Too many people dismiss environmentalists as people who care more about some random fish than fellow humans. That's not the case. We don't think (by and large) that environmental issues are the foremost pressing issues for our species going forward simply because we think there is some moral imperative to "treat the earth right." It's because we know that we need the earth to remain sustainable for our own species to survive and thrive. When the North Atlantic Cod Fishery collapsed, it destroyed lives and local economies. If enough fisheries collapse, people will starve. Sustainability isn't ultimately about the protection of the planet; it's about the survival of humankind.
Now, a caveat: this is a bit of an oversimplification. It's not like every single fishery and every single carbon sink hit D-Day at the same time. Earth Overshoot Day is simply the point where the average use of all our renewable resources outstrips the productive ability of the planet for a single year.
This is an important concept. Too many people dismiss environmentalists as people who care more about some random fish than fellow humans. That's not the case. We don't think (by and large) that environmental issues are the foremost pressing issues for our species going forward simply because we think there is some moral imperative to "treat the earth right." It's because we know that we need the earth to remain sustainable for our own species to survive and thrive. When the North Atlantic Cod Fishery collapsed, it destroyed lives and local economies. If enough fisheries collapse, people will starve. Sustainability isn't ultimately about the protection of the planet; it's about the survival of humankind.