Experts and scientists say solar geopolitical projects designed to cool the Earth’s surface and control global warming are dangerous (AFP / Chandan Khanna)
In a letter released Monday, 60 experts and scientists argued that solar geopolitical projects to cool the Earth’s surface and control global warming are dangerous and should be stopped by governments.
This open letter emphasizes in a speech in the press that the injection of billions of sulfur particles into the upper atmosphere – one of the most controversial deliberate solar transformation projects – may reflect some of the sun’s rays, but the side effects may outweigh the benefits. Wires Climate change.
“The sequencing of solar geoengineering cannot be managed in a fair, inclusive and effective manner worldwide.
Earth engineering tracks that control global warming by reflecting sunlight (AFP /)
The planet has received approximately +1.1 ° C since pre-industrial times, which already leads to an increase in heat waves, floods and storms.
The world is committed to controlling this warming below + 2 ° C, + 1.5 ° C, but UN Climate Experts (IPCC) estimates that the + 1.5 ° C limit may already be reached by 2030.
As global warming fails to reduce CO2 emissions, some politicians are now backing global engineering and buying time.
Scientists have long known that placing large amounts of reflective particles in the upper layer of the atmosphere will cool the planet.
Worldwide temperature anomalies are detected each year between 2002 and 2021, compared to the average for the period 1981-2010 (AFP /)
Predictions since the eruption of the Pinotubo volcano in the Philippines in 1991 have lowered the Earth’s average surface temperature by one year.
But above all the open letter highlights the dangers.
Already published studies suggest that a deliberate change in solar radiation, for example, could disrupt monsoon regimes in South Asia and West Africa and destroy crops on which hundreds of millions of people depend.
The IPCC estimates that “for whatever reason, the surface temperature will rise rapidly” once the change in radiation is complete.
Furthermore, this technology does not prevent the continuous accumulation of CO2 in the atmosphere.
Monthly evolution of atmospheric concentrations of carbon dioxide and methane, since 2003 (AFP /)
The signatories, such as Artie Gupta, a professor at Wageningen at the Dutch University, or Dirk Messner, head of the German environmental organization, are concerned about the risk of creating misconceptions about a solution to global warming, saying “governments, businesses and communities must do everything they can to achieve carbon neutrality as soon as possible.”
Finally, experts point to a lack of management to oversee these projects.
Therefore, without stopping scientific research, the open letter calls for a “non-international use agreement” that will prevent funding, testing and patenting of these technologies.
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