THE CAREFUL FOOT
What, Me Worry?
SO FAR, most species that were alive 5,000 years ago have survived to our day. Some say that because of this, whoever predicts trouble should be ignored. But extinction usually takes a long time and many species already find themselves in a free fall from about the top of the Sears Tower. As they pass the 80th floor, maybe we should say,"So far, so good."
The problem is that human enterprise has degraded a huge fraction of the Earth's land surface. Ecology has discovered that such loss of habitat eventually extracts its price. If we remove 50% of the land from the possibility of use by wild species, we will lose about 50% of species. If we remove 90%, we will lose 90%. The law is simple and life has obeyed it for hundreds of millions of years.
But to use land, we don't have to take it away from other species.
We can have our land and share it, too.