Playing God With The Sky

Dr. Penelope Hartwell: Good evening, and welcome to the programme. Tonight's topic is one that used to live entirely in science fiction novels and now sits in front of actual funding committees: terraforming Earth, geoengineering our own planet back into shape.

Dr. Penelope Hartwell: We're talking stratospheric aerosols, mirrors in orbit, seeding oceans with iron filings, the whole toolkit. Joining me tonight, Pastor Cole, Prepper Paul, and Boomer Bill.

Pastor Cole: Evening, Penelope. Glad to be here, though I confess my Bible study group had opinions about this topic that took up most of Tuesday night.

Prepper Paul: I've got three separate binders on this. Not exaggerating. One's just on HAARP.

Boomer Bill: I got no binders. I got common sense, which apparently went extinct sometime around 1995.

Dr. Penelope Hartwell: Let's start simple. Bill, stratospheric aerosol injection — spraying reflective particles into the upper atmosphere to bounce sunlight back to space. Your gut reaction?

Boomer Bill: My gut reaction is somebody's gonna get a government contract to spray chemicals over my house and call it science.

Pastor Cole: Now Bill, it's not that different in principle from what a volcano does. Pinatubo cooled the globe half a degree back in '91.

Boomer Bill: A volcano didn't file a permit. A volcano didn't have a guy named Chad running a dashboard.

Prepper Paul: That's exactly the problem right there. Nature does it, fine, that's God's business — no offense, Pastor — but the second a government agency does it, ask yourself who benefits.

Pastor Cole: None taken, Paul, though I'll gently point out you just invoked God's business to make a point about a dashboard.

Dr. Penelope Hartwell: Paul, walk us through the binder. What specifically worries you about aerosol spraying?

Prepper Paul: Once you've got the infrastructure to dim the sun over one hemisphere, you've got a weapon. You could starve a country's harvest without firing a shot. That tech doesn't get built and then only used nicely.

Boomer Bill: See, for once, Paul and I are on the same page. Never thought I'd see the day.

Prepper Paul: Don't get used to it, Bill, you still think the moon landing was real.

Boomer Bill: It WAS real, you absolute —

Dr. Penelope Hartwell: Gentlemen. Let's stay on geoengineering, we can relitigate 1969 another evening.

Pastor Cole: I'll take a different angle if I may. My concern isn't the mechanism, it's the posture. There's something in scripture about the folly of building a tower to reach heaven.

Dr. Penelope Hartwell: You're saying this is a Babel problem.

Pastor Cole: I'm saying when man decides he can hang a new sun dial on the sky and call it management, humility tends to exit the room first.

Prepper Paul: Humility exited the room around the same time they started calling it "solar radiation management" instead of "blocking the sun," which, notice, is a scarier phrase so they don't use it.

Boomer Bill: Everything's a phrase now. Nobody says what they mean. Back in my day if you were gonna block out the sun you'd just say "hey, we're blocking out the sun."

Dr. Penelope Hartwell: Let's move to a second proposal — space-based sunshades. A fleet of mirrors or lenses parked between Earth and the sun, dimming incoming light by a percent or two.

Prepper Paul: Now THAT one I actually find less scary. It's reversible. You unplug it, sunlight's back. The spraying stuff, once it's in the stratosphere, good luck getting it back out.

Pastor Cole: Reversibility does matter morally. A mistake you can undo is a very different kind of mistake.

Boomer Bill: Reversible or not, who's paying for a space umbrella the size of Texas? That's not a GoFundMe, that's a trillion dollars nobody's got.

Dr. Penelope Hartwell: Fair point on cost. Estimates for a full sunshade run into the trillions, spread across decades.

Prepper Paul: Trillions they'll print, which is its own disaster, but sure, let's build a space umbrella.

Boomer Bill: I worked thirty-one years at the plant. You know what we did when something cost too much? We didn't do it.

Pastor Cole: There's wisdom in that, actually. Restraint isn't always cowardice.

Prepper Paul: Restraint is exactly what they WANT you to think is happening while the real program runs underground. I'm just saying.

Dr. Penelope Hartwell: Which real program, Paul?

Prepper Paul: I didn't say there was one. I said I'm just saying.

Boomer Bill: He says that about everything. One time he said "I'm just saying" about the produce section at Kroger.

Prepper Paul: Because they rotate the lettuce display to track eye movement, Bill, that's not a conspiracy, that's marketing science, it's published.

Dr. Penelope Hartwell: Moving along — ocean iron fertilization. Dumping iron dust into the sea to trigger algae blooms that soak up carbon dioxide. Pastor, thoughts?

Pastor Cole: My first thought is that the ocean's already doing a great deal of quiet, uncredited work keeping us alive, and maybe we ought to ask permission before we start feeding it iron filings like a science fair volcano.

Boomer Bill: You can't ask an ocean permission, Padre.

Pastor Cole: I'm speaking metaphorically, Bill.

Boomer Bill: Well speak literally, some of us are trying to follow.

Dr. Penelope Hartwell: The concern from marine biologists is that a big algae bloom can suck oxygen out of the water once it dies and sinks, creating dead zones.

Prepper Paul: There it is. You fix one number on a spreadsheet and you kill every fish for fifty miles. That's the pattern with every single one of these ideas.

Pastor Cole: Which brings me back to my Babel point, if I can circle back to it —

Boomer Bill: You never left it, Pastor, you've been standing on that tower the whole show.

Pastor Cole: It's a durable metaphor, Bill, I stand by durable metaphors.

Dr. Penelope Hartwell: Let's talk governance for a moment, because this seems to be the thread underneath all of it. Who decides? Who turns the dial, and who's accountable if it goes wrong?

Prepper Paul: Nobody. That's the answer. Nobody's accountable. You think the guy who green-lit the algae bloom is doing time for it? He's got a book deal.

Boomer Bill: A book deal AND a TED talk, probably. That's how it always goes now. Screw up big enough, get a stage and a headset mic.

Pastor Cole: I'd want a body with real moral weight behind the decision, not just technical competence. Knowing how to do a thing has never been the same as knowing whether you should.

Dr. Penelope Hartwell: That's the Jurassic Park line, more or less.

Pastor Cole: I'll take the credit for that phrasing anyway, Penelope, thank you.

Boomer Bill: Here's my actual worry, and it ain't spiritual, it's practical. Say the thermostat's controlled by one country. What happens when country B doesn't like the temperature country A picked?

Prepper Paul: War. Water war, weather war, take your pick, it's all downstream of the same fight.

Pastor Cole: I don't disagree that's a real risk, I just don't think fear of the outcome should stop us from asking the moral question first.

Prepper Paul: I'm not scared, Pastor, I'm prepared. Big difference. I got the shelter stocked either way.

Dr. Penelope Hartwell: Let's bring in the actual sci-fi angle, since that's half our title. These ideas came out of novels decades before any government took them seriously. Does that pedigree worry anyone?

Boomer Bill: Worries me plenty. We're taking life advice from guys who also wrote about laser guns and teleportation. Half that stuff never panned out.

Pastor Cole: Though to be fair, some of it did. Submarines, before Jules Verne. Geostationary satellites, before Arthur C. Clarke published a word of policy.

Boomer Bill: Fine, some of it pans out. Doesn't mean we should build the sun-dimmer just 'cause a paperback said it'd work.

Prepper Paul: The part that gets me is the novels usually end with the machine going wrong and the guy who built it running for his life. Nobody in those books says "and then it worked great forever."

Dr. Penelope Hartwell: That's rather the point of fiction, Paul — conflict makes the story, not the technology succeeding quietly.

Prepper Paul: Sure, but maybe fiction's trying to tell us something and we keep skipping the moral and going straight to the blueprint.

Pastor Cole: That's the most agreeable thing you've said all evening, Paul.

Prepper Paul: Don't get used to it either.

Dr. Penelope Hartwell: Let's talk cloud brightening — ships spraying seawater mist to make clouds reflect more sunlight over specific regions, say, to save a coral reef. Smaller scale, more targeted. Does that change anyone's calculus?

Boomer Bill: Smaller scale I can almost stomach. Almost. Still sounds like a guy with a hose deciding the weather for everybody downwind of him.

Pastor Cole: I'm more sympathetic to the targeted version, honestly. Saving a reef feels more like stewardship and less like empire-building.

Prepper Paul: Targeted today, hemisphere-wide in ten years. That's how all these programs grow. Nobody starts by asking for the big version.

Dr. Penelope Hartwell: Mission creep, essentially.

Prepper Paul: Mission creep is a nice word for it. I'd call it the boiling frog, except this time we're the ones turning the burner.

Boomer Bill: There he goes being almost poetic. Somebody write that down before he ruins it.

Prepper Paul: I contain multitudes, Bill.

Boomer Bill: You contain a bunker and a bad attitude.

Dr. Penelope Hartwell: Let's touch briefly on the moral hazard argument — the worry that if we believe geoengineering can fix the climate, we'll simply stop cutting emissions altogether.

Pastor Cole: That's the one that keeps me up nights, more than the theology even. It's the sin of the shortcut. We'd rather dim the sun than change how we live.

Boomer Bill: Guilty as charged, probably, but I'll tell you, changing how everybody lives has been tried for thirty years and it hasn't exactly worked either.

Pastor Cole: No argument there. I just don't think the answer to one failure of will is a bigger, riskier substitute for that will.

Prepper Paul: See, this is where I'll actually side with the Pastor on something other than tone. If the fix requires no sacrifice from anybody, I don't trust the fix.

Dr. Penelope Hartwell: Two agreements from Paul in one evening. I should mark the date.

Prepper Paul: Don't get used to it.

Boomer Bill: He's said that three times now, somebody's counting.

Dr. Penelope Hartwell: As we wrap up, I'd like each of you to give me one sentence — would you personally sign off on a real-world geoengineering program, yes or no, and why.

Pastor Cole: No, not as currently proposed — not because the science is wrong, but because no institution I've seen has earned the humility the job requires.

Boomer Bill: No, because somebody's gonna get rich off it and I'll still be the one paying higher taxes and getting weird weather.

Prepper Paul: No, obviously, but I'll also be building a second greenhouse just in case you're all wrong and I need to grow my own food under a dimmer sun.

Dr. Penelope Hartwell: A unanimous no, then, from very different directions — theology, thrift, and a very well-stocked greenhouse.

Boomer Bill: First time we've agreed on anything since we sat down.

Pastor Cole: There's a sermon in that somewhere, I'm sure of it.

Prepper Paul: There's a binder in it, definitely.

Dr. Penelope Hartwell: On that note of unlikely consensus, that's all the time we have. Thank you to Pastor Cole, Prepper Paul, and Boomer Bill, and thank you all for listening. Until next time, keep your eyes on the sky — and maybe don't trust whoever's holding the dimmer switch.