Risky geoengineering should be banned, climate group says
The Hindu
Controversial technologies intended to offset the effects of atmospheric carbon should banned until properly assessed, a group of politicians and scientists have warned
Controversial technologies intended to offset the effects of atmospheric carbon should banned until properly assessed, a group of politicians and scientists have warned, even as they urged developed nations to lead in cutting CO2 emissions.
A report by the Climate Overshoot Commission, chaired by former WTO boss Pascal Lamy and formed in 2022, said it was increasingly likely the world would exceed the target to keep temperature rises within 1.5 degrees Celsius above pre-industrial levels.
It said richer countries needed to take the initiative to cut CO2 emissions and mobilise finance for poorer countries to adapt. Carbon removal technologies that minimise the risks of CO2 leaking back into the atmosphere should be promoted, the report said.
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But potentially dangerous experimental geoengineering methods - including controversial "solar radiation modification" - need to be halted until they have been researched thoroughly, the report said.
"Countries should adopt a moratorium on the deployment of solar radiation modification and large-scale outdoor experiments that would carry risk of significant transboundary harm," it said.
Solar radiation modification refers to a range of proposed technologies designed to reflect sunlight away from the earth, including the direct injection of sulphates into the atmosphere. Last year, 60 scientists launched a global initiative aimed at banning all kinds of solar geoengineering.
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