The White House is suggesting the “possible deployment” of radical climate change techniques like artificially blocking sunlight as part of its climate change agenda despite expert warnings that such initiatives can have devastating effects on the planet.
Solar radiation modification (SRM), also known as solar geoengineering, is aimed at preventing sunlight from accelerating the warming of the planet.
“Greenhouse gasses warm the climate by blocking a portion of outgoing longwave radiation that would otherwise be emitted into space,” states the report (pdf), published by the White House Office of Science and Technology Policy on June 30. “By contrast, SRM cools the climate by reflecting a greater amount of incoming solar (shortwave) radiation back into space … SRM offers the possibility of cooling the planet significantly on a timescale of a few years.”
The findings are part of a report the White House prepared in response to a mandate from last year’s $1.5 trillion spending bill. The White House said in a June 30 statement that the report “does not signify any change in policy or activity by the Biden-Harris Administration.”
Instead, “this report fulfills a Congressional mandate, and there are no plans underway to establish a comprehensive research program focused on solar radiation modification.”
Though such artificial cooling could “reverse many of the negative consequences of climate change,” the report admits that these developments can come with “ramifications which are now poorly understood.”
The document acknowledged that the research program could help the United States prepare for a “possible deployment” of SRM through public or private actors.
SRM will not undo the consequences of greenhouse gas emissions. For instance, “SRM would not ameliorate most of the impacts of ocean acidification … nor eliminate the tendency for fossil fuel burning to worsen air quality.”
In addition, “SRM might halt but would not result in the rapid reversal of some important manifestations of climate warming, such as loss of land ice and greenhouse gas emissions from thawing permafrost.”
The report also warns about several potential negative consequences of SRM. The procedure can trigger changes in stratospheric temperatures, a rise in sea levels, acidification of oceans, and alteration in precipitation patterns. It can also affect terrestrial vegetation, biodiversity, ecosystems, crop production, and coral reefs.
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