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E.O. Wilson Reflects on His Career and Stresses the Importance of Biodiversity | Big Think


4m read
·Nov 4, 2024

In my long life, actually, I'm 85 years old. Um, I've been through a lot of different worlds, mostly biological worlds and parts of the natural world, and the like. What I'm coming increasingly to concentrate on, um, in whatever time I have left, is the natural world and the necessary means that we have to use to save it.

There are about two million species of plants, animals, and microorganisms that we know about, that scientists have found, diagnosed, given a description of, and a scientific name. Two million, almost exactly, at the present time. The actual number of species in the world is estimated at roughly eight million species, maybe eight to ten. We don't know most of the natural world; most of nature, not of the living part of the environment, is unknown to us.

Of those species that we know—the two million—only we only know the life cycles and the biology of only a tiny fraction. Of that tiny fraction that we know something about, we know an even just a tiny fraction again of how they interact with other species. We are living in and dependent upon a world of a biosphere in which we evolved, and then to which we are exquisitely well adapted in every part of our body and our mind.

Razor thin, that biosphere within which we and our fellow organisms live, without going into submersibles or space suits. Uh, and we are destroying a large part of it. The rate at which species are going extinct—this is the consensus—order of magnitude. I've estimated, others have estimated different ways and so on, working in this field of extinction. The rate at which species are going extinct is on the order of magnitude a thousand times faster than how fast they were going before the coming of humanity.

We're hemorrhaging the world's biodiversity. People know that, but they just don't seem to grasp what this means. What this means is that the living shield, just from their point of view—the human point of view—the shield of living organisms that maintains the environment, is close to exactly what humans need because we evolved as one of them. It is being shored away.

We estimate that the number of species existing unimpaired at the end of the century would be just somewhere about one-half. One half will be gone or on the brink of extinction at this rate of extinction. There are ways to stop this, and I think we're going to have to start talking about big changes in how much of the Earth’s surface we put aside for nature, just to keep it from going extinct in a very short period of time.

I'm in a group— a group of scientists working very hard on that part right now. This is what I'm focused on, and I hope we might even see what some of the solutions will be. But here's one last interesting point: just as our salvation is aided by u—an unintended consequence of women who get any economic freedom, stop having children. That is, they drop having the number of children below zero population growth, which is a very good thing for an overpopulated world right now.

In other words, we don't have to enforce or persuade much more people to have fewer children. What we need to do is to move as much of the world population into the middle class. With women's freedom, we could reach—well, this United Nations projection—reach 8 to 10 billion by the end of the century, and then the population begins to subside.

What about consumption? Many people would say, "Oh well, you know, 8 to 10 billion people—that still means that we're going to eat up the rest of the world." And so, there's still a lot. No, not at all. There's something called the ecological footprint. That's the amount of land required for each person, on average, to live at whatever level of life humanity is reaching for or has acquired—for the amount of land for habitation, for food, for governance, for transportation.

The whole thing may be scattered in pieces around the world, but we can measure it, and it has been measured. And so, the fear would be with—that's growing—is it not because of increased per capita consumption? And that makes, even with the population slowing and receding, the rest of life will be gone. Right? Wrong.

No, with modern technology—and think about it—everything in u, the current innovative technoscientific evolution that society is going through, is producing an ever smaller footprint. Why? Because people buy the—and the whole economy is increasingly technoscientific and being directed at making things lighter, smaller, and more effective in energy consumption.

It happens, then—and this is something I think the economists should be measuring and thinking about. What then is important is, as human economic activity increases worldwide, it is at the same time, it seems to me—I have discussed this with some experts, and they seem to agree—this is an extremely important principle: that what we’re doing in the modern scientific technoscientific digital hyperconnected age is shrinking the ecological footprint.

Believe it or not, that could be—we need measurements taken—that could be the solution of the whole thing, because if we give more to nature to hold onto that shield and the living part of the environment, it can be done. And I believe it can be practical, because of the shrinking ecological footprint. Just a thought.

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