"The developed countries of the “global north” are responsible for 92% of
excess global emissions, according to a 2020 study in The Lancet Planetary
. Yet it is the rest of the world – the “global south” – that
disproportionately bears the brunt of climate change. Emergency measures to
reflect more of the Sun could help temporarily avoid the worst impacts, but it
must serve to improve the safety of those most affected.
Somewhere between 15% and 40% of CO₂ emissions will remain in the atmosphere
longer than 1,000 years. Since so much climate change is already “locked in”,
any strategy to tackle it based on emissions reduction alone, regardless of how
quickly we reduce them, would still result in catastrophic ice losses in the
Arctic and Antarctica leading to sea level rise, loss of low-lying countries
and hundreds of millions of climate refugees. It would still mean global food
and water shortages, massive flooding and wild fires, and a permanent loss of
ecosystems. These devastating changes will continue to disproportionately
impact the global south.
We believe the best way to avert major disaster is to develop and deploy
temporary schemes which can partially shield some of the Earth from incoming
solar radiation, at least until emissions reductions and carbon capture and
storage can be scaled up."
*** Xanni ***
Chief Scientist, Xanadu
Partner, Glass Wings
Manager, Serious Cybernetics