Miles in Love - Lois McMaster Bujold [23]
"It sounds like insanity to an engineer to say, `We need to waste more energy in heat loss,' " agreed Vorthys, "but I suppose here it's true. What's the feasibility of dedicating some number of fusion reactors to pure heat production?"
"Boiling the seas cup by cup?" Soudha grimaced. "Possible, sure, and I'd love to see some more done with that technique for small-area development in Serifosa Sector. Economical—no. Per degree of planetary warming, it's even more costly than repairing—or enlarging—the soletta array, something for which we've been petitioning the Imperium for years. Without success. And if you've built a reactor, you might as well use it to run a dome while you're at it. The heat will arrive outside eventually just the same." He slid data disks across to both Vorthys and Miles this time. "Here's our current departmental status report." He glanced across at one of his colleagues. "We're all anxious to move on to higher plant forms in our lifetimes, but at present the greatest, if not success, at least activity remains on the microbial level. Philip?"
The man who had been introduced as the head of Microbial Reclassification smiled, not entirely gratefully, at Soudha, and turned to the Auditors. "Well, yes. Bacteria are booming. Both our deliberate inoculations, and wild genera. Over the years, every Earth type has been imported, or at any rate, has arrived and escaped. Unfortunately, microbial life has a tendency to adapt to its environment more swiftly than the environment has adapted to us. My department has its hands full, keeping up with the mutations. More light and heat are needed, as always. And, bluntly, my lords, more funding. Although our microflora grow fast, they also die fast, rereleasing their carbon compounds. We need to advance to higher organisms, to sequester the excess carbon for the millennial time-frames required. Perhaps you could address this, Liz?" He nodded toward a pleasantly plump middle-aged lady who had been named head of Carbon Draw-down.
She smiled happily, by which Miles deduced her department's responsibilities were going well this year. "Yes, my lords. We've a number of higher forms of vegetation coming along both in major test plots, and undergoing genetic development or improvement. By far our greatest success is with the cold- and carbon-dioxide-hardy peat bogs. They do require liquid water, and as always, would do better at higher temperatures. Ideally, they should be sited in subduction zones, for really long-term carbon sequestration, but Serifosa Sector lacks these. So we've chosen low-lying areas which will, as water is released from the poles, eventually be covered with lakes and small seas, locking the captured carbon down under a sedimentary cap. Properly set up, the process will run entirely automatically, without further human intervention. If we could just get the funding to double or triple the area of our plantations in the next few years . . . well, here are my projections." Vorthys collected another data disk. "We've started several test plots of larger plants, to follow atop the bogs. These larger organisms are of course infinitely more controllable than the rapidly mutating microflora. They are ready to scale up to wider plantations right now. But they are even more severely threatened by the reduction in heat and light from the soletta. We really must have a reliable estimate of how long it will take to effect repairs in space before we dare continue our planting plans."
She gazed longingly at Vorthys,