"A group of US scientists this week proposed an unorthodox scheme to combat
global warming: creating large clouds of Moon dust in space to reflect sunlight
and cool the Earth.
In their plan, we would mine dust on the Moon and shoot it out towards the Sun.
The dust would stay between the Sun and Earth for around a week, making
sunlight around 2% dimmer at Earth’s surface, after which it would disperse and
we would shoot out more dust.
The proposal, which involves launching some 10 million tonnes of Moon dust into
space each year, is in some ways ingenious – and if it works as advertised from
a technical perspective, it might buy the world some vital time to rein in
Unfortunately, but also unsurprisingly, the story of Moon dust reflection isn’t
as simple as it seems."
*** Xanni ***
Chief Scientist, Xanadu
Partner, Glass Wings
Manager, Serious Cybernetics