“But they’re managing to hold things steady.”
“Well, I think the high altitudes are getting a bit more air and water than they’re supposed to. You have to go really high to get away from it.”
“I thought you said they were winning in court?”
“In the courts, yes. In the atmosphere, no. There’s too much going on.”
“You’d think they’d sue the greenhouse-gas factories.”
“They have. But they’ve lost. Those gases have everyone else’s support. Without them we’d have gone into an ice age and stayed there.”
“But a reduction in emission levels. . . .”
“Yeah, I know. It’s still being fought over. It’ll go on forever.”
“True.”
Meanwhile the Hellas Sea’s sea level had been agreed on; it was a legislative fact, and efforts all around the basin were coordinated to make sure the sea obeyed the law. The whole matter was fantastically complicated, although simple in principle: they measured the hydrological cycle, with all its storms and variations in rain and snow, melting and seeping into the ground, running over the surface in creeks and rivers, down into lakes and then into the Hellas Sea, there to freeze in the winter, then evaporate in the summer and begin the whole round again . . . and to this immense cycle they did what was necessary to stabilize the level of the sea, which was about the size of the Caribbean. If there was too much water and they wanted to draw down the sea level, there was the possibility of piping some of it back up into the emptied aquifers in the Amphitrites Mountains to the south. They were fairly limited in this, however, because the aquifers were composed of porous rock which tended to crush down when the water was first removed, making them difficult or impossible to refill. In fact spill-off possibilities were one of the main problems still facing the project. Keeping the balance. . . .
And this kind of effort was going on all over Mars. It was crazy. But they wanted to do it, and that was that. Diana was talking now about the efforts to keep the Argyre Basin dry, an effort in its way as large as the one to fill Hellas: they had built giant pipelines to evacuate water from Argyre to Hellas if Hellas needed water, or to river systems that led to the North Sea if it didn’t.
“What about the North Sea itself?” Maya asked.
Diana shook her head, mouth full. Apparently the consensus was that the North Sea was beyond regulation, but basically stable. They would just have to watch and see what happened, and the seaside towns up there take their chances. Many believed that the North Sea’s level would eventually fall a bit, as water returned to the permafrost or was trapped in one of the thousands of crater lakes in the southern highlands. Then again precipitation and runoff into the North Sea was substantial. The southern highlands were where the issue would be decided, Diana said; she called up a map onto her wristpad screen to show Maya. Watershed construction co-ops were still wandering around installing drainage, running water into highland creeks, reinforcing riverbeds, excavating quicksand, which in some cases revealed the ghost creekbeds of ancient watersheds below the fines; but mostly their new streams had to be based on lava features or fracture canyons, or the occasional short canal. The result was very unlike the venous clarity of Terran watersheds: a confusion of little round lakes, frozen swamps, canyon arroyos, and long straight rivers with abrupt right-angle turns, or sudden disappearances into sinkholes or pipelines. Only the refilled ancient riverbeds looked “right”; everywhere else the terrain looked like a bomb range after a rainstorm.
Many of the Deep Waters veterans who had not directly joined the Hellas Sea Institute had started an associated co-op of their own, which was mapping the groundwater basins around Hellas, measuring the return of water to the aquifers and the underground rivers, figuring out what water could be stored and recovered, and so on. Diana was a member of this co-op, as were many of the people in Maya’s old office. After their lunch Diana went to the rest of the group, and told them about Maya’s return to town; when they heard that Maya was interested in joining them, they offered her a position in the co-op with a reduced joining fee. Pleased at the compliment, she decided to take them up on it.
• • •
So she worked for Aegean Water Table, as the co-op was called. She got up in the mornings and made coffee and ate some toast or a biscuit, or croissant, or muffin, or crumpet. In fine weather she ate out on their balcony; more often she ate in the bay window at the round dining table, reading the Odessa Messenger on the screen, noting every little incident that combined to reveal to her the darkening situation vis à vis Earth. The legislature in Mangala elected the new executive council, and Jackie was not one of the seven; she had been replaced by Nanedi. Maya whooped, and then read all the accounts she could find, and watched the interviews; Jackie claimed to have declined to run, she said she was tired after so many m-years, and would take a break like she had several times before, and be back (a sharp glint to her eye with that last remark). Nanedi kept a discreet silence on that topic, but he had the pleased, slightly amazed look of the man who had killed the dragon; and though Jackie declared that she would continue her work for the Free Mars party apparatus, clearly her influence there had waned, or else she would still be on the council.