He was a red-eyed scarecrow, hunched over the little desk, as he expounded his results the next morning. His words were slow and careful; he had evidently spent a long time on Vickers’ problem after obtaining a satisfactory solution of his own.
“There is one fact that I think will help you greatly,” he said. “This planet is in an ice age — we could tell that from space. In this hemisphere, where it is now two Earth years past midsummer, the ice cap extends more than thirty degrees from the pole. In the other, the large island and continental masses possess glacial sheets scores of feet in thickness to within forty degrees of the equator; and heavy snow fields reach to less than twenty degrees south latitude in spots. On smaller islands, whose temperatures should be fairly well stabilized by the ocean, there appears to be much snow at very low latitudes.
“I suppose, though that’s outside my line, that these people developed their civilization as a result of the period of glaciation, just as the races of Earth, Thanno, and a lot of the other Federation planets seem to have. Now, however, they have the situation of a growing race cramped into the equatorial regions of a planet — admittedly a large one, but with most of its land area in the middle latitudes.
“On Earth we pushed the isotherms fifteen degrees further from the equator, and benefited greatly thereby. How about selling the same idea to the Heklans, if you really want a convincing example of what we can do for them?”
“Two questions, please,” returned Vickers. “First, what’s this about changing the Earth’s weather? I don’t recall ever having heard of such a thing. In the second place, I’m afraid we’ll have to sell the Heklans a little more than possible advantages. Our working theory, remember, is that I inadvertently got them leery of the combative and competitive elements of Federation culture. How would curbing their ice age, if you can do it, help that? Also, and most important, how does it help us to get a corner on the metal trade here before a real Federation agent steps in and opens the place up? Once that happens, every company from Regulus to Vega will have trading ships on Hekla; and we want Belt Metals to be solidly established here by that time. How about that?”
“To answer your first point, we didn’t change Earth’s weather, but its climate. There’d be no point in trying to explain the difference to you, I guess. They stepped up the CO2 content of the atmosphere, producing an increased blanketing effect. At first the equatorial regions were uncomfortably hot as a result; but when the thing stabilized again a lot of the polar caps had melted, and a lot of formerly desert land in the torrid zones, which had been canalized for the purpose, had flooded in consequence. The net result was an increased evaporation surface and, through a lot of steps a little too technical for the present discussion, a shallower temperature drop toward the poles. The general public has forgotten it, I know, but I thought it was still taught in history. Surely you heard of it sometime during your formative years.”
“Perhaps I did. However, that doesn’t answer the other question.”
“That’s your problem, at least for the details. I should say, however, that their acceptance of that proposition would entail the purchase of a lot of machinery by the Heklans. A genius like you can probably take the idea on from there.”
Vickers pursed his lips silently, and thought. There seemed to be some elements of value in Rodin’s idea; elements from which, with a little cerebration, something might be built.
“If they were to accept such a proposition, how long would it take to get the thing under way?” he asked finally.