human
The task of the Afforestation Project is to return the Sahara to the fertile land it once was. The job is a gargantuan one, but ultimately quite possible. Here in the south we are daming the Niger, running our irrigation projects farther and farther north. From the Mauritania area on the Atlantic we are pressing inland, using water purification and solar pumps to utilize the ocean. In the mountains of Morocco, the water available is being utilized more efficiently than ever before, and the sands being pushed back. We are all familiar with Egypt's ever increasingly successful efforts to exploit the Nile. In the Sahara itself, the new solar pumps are utilizing wells to an extent never dreamed of before. The oases are increasing in a geometric progression both in number and in size.
gpt
It's a fascinating project. How long do you estimate it will be before the job is done?
human
Perhaps a century. As the trees go in by the tens of millions, there will be a change in climate. Forest begets moisture which in turn allows for more forest. He turned back to the audience as a whole.
gpt
In time we will be able to farm these million upon million of acres of fertile land. First it must go into forest, then we can return to field agriculture when climate and soil have been restored. This is our prime task! This is our basic need. I call upon all of you for your support and that of your organizations if you can bring their attention to the great need. The tasks you have set yourselves are meaningless in the face of this greater one. Let us be practical.
human
Crazy man, Abe Baker said aloud.
gpt
Let's be practical and cut out all this jazz. The youthful New Yorker came to his feet.
human
First of all you just mentioned it was going to take a century, even though it's going like a geometric progression. Geometric progressions get going kind of slow, so I imagine that your scheme for making the Sahara fertile again, won't really be under full steam until more than halfway through that century of yours, and not really ripping ahead until, maybe two thirds of the way. Meanwhile, what's going to happen?
gpt
I beg your pardon!
human
That's all right, Abe Baker grinned at him.
gpt
The way they figure, population doubles every thirty years, under the present rate of increase. They figure there'll be three billion in the world by 1990, then by 2020 there would be six billions, and in 2050, twelve billions and twenty-four by the time your century was up. Old boy, I suggest the addition of a Sahara of rich agricultural land a century from now wouldn't be of much importance.
human
Ridiculous!
gpt
You mean me, or you? Abe grinned.
human
I once read an article by Donald Kingsbury. It's reprinted these days because it finished off the subject once and for all. He showed with mathematical rigor that given the present rate of human population increase, and an absolutely unlimited technology that allowed instantaneous intergalactical transportation and the ability to convert anything and everything into food, including interstellar dust, stars, planets, everything, it would take only seven thousand years to turn the total mass of the total universe into human flesh!
gpt
Ridiculous!
human
It sure is, man, Abe grinned.
gpt
And the point is that the job is educating the people and freeing them to the point where they can develop their potentialities. Educate the African and he will see the same need that does the intelligent European, American, or Russian for that matter, to limit our population growth.
human
Thanks to both of you for some interesting points. Now, who's next? Who else do we have here?