Usually it is agreed that climate change is mostly due to global pollution with CO2.
It is a huge problem that calls for many imaginative solutions.
The following is a proposal that may be a realistic solution.

Click at yellow text for more details.

A bit technical

  • The earth’s temperature depends on a delicate balance between radiation from the sun.
    And the other way (long-wave) radiation back into space.
    (Sometimes called cold heat radiation.)
  • Even very small changes in these two parameters will have a major impact on the climate.
  • White marble has little absorption of sunligt and great radiance back into space.
    Old galvanized iron (corrugated iron): Just the other way around.
  • Greenhouse gases (CO2) inhibit the emission.
  • Ice at sea and in Greenland is predominantly white as white marble.
    While the sea is black as galvanized iron.
    This results in a dangerous self-reinforcing effect.
  • The Little Ice Age was (perhaps) triggered by a large volcanic eruption at Tambora in Indonesia in 1815
  • Volcanic eruptions in Iceland are claimed to be a contributing factor to the French Revolution.

A few solutions

  • Paint the roads white.
  • Spray up seawater and get some white clouds.
  • And totally unrealistic:
    Extract CO2 from the atmosphere – quite a lot – a few billion tons.


To avoid misunderstandings, I have to point out that I do not have the prerequisites to make a quantitative assessment of what I am proposing.
However, I would like to stress that even a very expensive solution will be justified if it can solve a huge problem.


Hydrogen filled balloons
black – Flying without control at altitudes above maximum flight altitude.
black – Be white (on the upper half.)
black – Be as cheap as possible.
black – Be able to contain the very small hydrogen molecule.
black – Be able to cope with the harsh climate (radiation).
black – Have a reasonably long life.

Even a “micro-meteor” will punch a hole and let the gas escape – slowly.
If deemed necessary: A radio-controlled “suicide mechanism”.

Proposals come forward like mushrooms in the forest.

Some almost negative remarks.

  • Even a lot of energy from sun and from wind will never be able to cover more than a small fraction of the world’s needs for energy.
  • Even if we “in time” – some 35 years ago – had gone hard in for nuclear power, we would still be in trouble.
    But nothing compared to what we have now messed us up into.
  • The proposal will not help with the acidification of the ocean.
    But it is argued and justified that more CO2 in the atmosphere will promote both agriculture and growth in the forests.
  • To me, it seems totally irresponsible that we have just banned fertilization of the ocean.
    In my opinion it will perhaps be the only realistic method of extracting CO2 from the atmosphere.
    Maybe also increase the fish stock.
  • Of course
    For good reason it is emphasized that it will be irresponsible to do something that may have negative consequences for others eg in Bangladesh.
    “We” in the industrialized and rich part of the world have already caused climate damage in other countries – without being held accountable.
  • It is stated that
    More than two million people have been displaced during the year due to natural disasters linked to climate change.
  • AND
    I think almost militarily and would argue that a small risk – for a few.
    It will be outweighed by expected great benefits – for the many.

Greetings from Thorkil Søe
I am a civil engineer, retired.
Brogårdsvej 60 – 307 Gentofte, Denmark
Phone +45 5117 1936