Slashdot Mirror


Group Seeks Test For Geoengineering Tool To Fight Climate Change

An anonymous reader writes: A group of retired engineers and scientists has been meeting for several years to develop techniques to fight climate change. They've now reached the point where they want to actively test a machine that shoots water droplets into the sky in order to supplement existing clouds and increase the planet's albedo. The group is not aiming for full deployment — in fact, it's not even unanimous in support for prevailing theories in climate science. But they all agree that it's important to learn about such technologies before the situation becomes a crisis. "We need to understand whether this approach is even possible and what the risks are, in the event that we find ourselves looking for ways to extend time and mitigate warming damage."

If we're eventually forced to deploy large-scale geoengineering projects to combat climate change, it's not a good idea to grab whatever technology is cheapest or most readily available without knowing how well it works. The group is aware of the ethical concerns surrounding such research, but its director notes, "The fact is humanity is already engaged in unplanned climate engineering. We're doing it through coal plant and shipping emissions every day without understanding it very well."

4 of 127 comments (clear)

  1. Re:sincere skepticism. by chilenexus · · Score: 3, Insightful

    Being too late to stop changes from happening is not a good reason to stop efforts to limit how bad it gets. That's like saying "I'm already going to hit the car in front of me, so why use my brakes before impact?"

    Well, it could spell the difference between a dented bumper and slaughtering everyone in both cars.

  2. Re:Actually you can by Rei · · Score: 4, Insightful

    Seriously though, for all we know, historically Earth has seen higher temperatures and much higher CO2 levels, and life on the planet was flourishing, much bigger and much more diverse than it is today.

    And we also know that when the planet has rapidly transitioned between climactic periods, it's been associated with mass extinctions. So I'm not really sure what your point is.

    To reiterate, the issue is not that the planet is changing, but how fast the planet is changing. Life takes time to adapt.

    Carbon is vital to all life, and sitting in the depths of the planet it ain't doing anyone any good.

    Boron is also needed by all complex life, but that doesn't mean we should be digging up huge amounts of it and dumping it into our air, either.

    --
    Stale pastry is hollow succor to one who is bereft of ostrich.
  3. what we can do now to make a big difference by swschrad · · Score: 3, Insightful

    is silence the deluded gasbags spewing lies on behalf of dirty energy, and move ahead on alternatives on a wartime basis. between coal spew and the denial industry's hot air, that's half the problem solved.

    --
    if this is supposed to be a new economy, how come they still want my old fashioned money?
  4. Forget Carbon: Natural Change Happens by Roger+W+Moore · · Score: 2, Insightful

    Actually I think there is a very strong argument for developing the capability to geo-engineer the climate which goes beyond any man-made climate change. There is overwhelming evidence that the Earth's climate changes radically over time, and possibly quite short times. Ignoring the debate over how much of the current climate change is man-made vs. natural it seems a very good idea to develop technology which will let us control the Earth's climate either to undo any damage we have caused ourselves or, if nothing else, to prevent the next ice age...with 6+ billions mouths to feed any significant climate change regardless of type or cause will be bad.