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Experiments to dim sunlight will soon be approved by UK government: report

By Emily MangiaracinaApril 23, 2025 at 3:12 PM
Experiments to dim sunlight will soon be approved by UK government: report
ZGPhotography/Shutterstock | Sunrise at Tower Bridge with tree and green grass, London, UK

Dimming the sunlight poses serious dangers, including by blocking vitamin D, potentially reducing rainfall, and releasing toxins into the environment.

(LifeSiteNews) — Experiments aimed at dimming sunlight with the stated goal of reducing "global warming" will be approved by the U.K. government within weeks, according to The Telegraph.

Professor Mark Symes, the program director for Aria (Advanced Research and Invention Agency), said the organization has planned “small controlled outdoor experiments on particular approaches” to sunlight dimming.

These trials could include “injecting aerosols into the atmosphere, or brightening clouds,” which are both Sunlight Reflection Methods (SRM). Marine Cloud Brightening (MCB) involves spraying sea-salt particles into the sky to make low-lying clouds more reflective.

It is unclear what kind of aerosols are being considered for the trials, although according to geoengineering.global, sulfate aerosols as well as black carbon, metallic aluminum, aluminum oxide, and barium titanate aerosols are “being considered for this solar radiation management approach.” Metallic aerosols in particular would raise health concerns for human beings as well as animal and plant life.

Symes has insisted to the public that the experiments won’t release toxic substances but has not specified what they will involve. “We have strong requirements around the length of time experiments can run for and their reversibility and we won’t be funding the release of any toxic substances to the environment,” he said.

Geoengineering.global admits that stratospheric aerosol injection poses dangers such as the possibility of reduced rainfall in certain areas, with accompanying “loss of crops and access to freshwater.”

According to The Telegraph, researchers have said in recent years that pollution above shipping routes has caused clouds above them to become brighter than normal, bringing about an overall dimming effect by reflecting sunlight back into the atmosphere.

While the scientific establishment often claims there is a “consensus” that the earth is warming, and, moreover, at a dangerous rate, six top international scientists released findings in 2022 that projected a cooling of the Northern hemisphere until the 2050s, and, by extension, the rest of the globe.

Most compellingly, over 1,100 scientists and professionals signed a “World Climate Declaration (WCD)" in 2022 declaring that “There is no climate emergency,” even if the globe is warming. They point out that “Earth’s climate has varied for as long as the planet has existed, with natural cold and warm periods,” and add that “warming is far slower than predicted.”

They also note that “there is no statistical evidence that global warming is intensifying hurricanes, floods, droughts and such-like natural disasters, or making them more frequent.”

The question of global warming aside, the effects of dimmed sunlight from even short-term experiments could have detrimental effects on mental and physical health. Sunlight is a critical source of vitamin D, which is needed to help defend against infections. Those who live above the 37th parallel are already said to be exposed to insufficient amounts of sunlight for vitamin D production during the fall and winter.

Dimmed sunlight could also put people at increased risk of Seasonal Affective Disorder (SAD), a type of depression linked to reduced levels of sunlight during the winter. According to researchers, the mechanism behind SAD involves lowered serotonin levels and a disrupted circadian rhythm caused by lack of sunlight.

Health & Science
April 23, 2025 at 3:12 PM
EM

Emily Mangiaracina

Emily Mangiaracina is a Miami-based journalist for LifeSiteNews. She is a 2013 graduate of the University of Florida. Emily is most passionate about the Traditional Latin Mass and promoting the teachings of the Catholic Church.
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  • Dimming the sunlight poses serious dangers, including by blocking vitamin D, potentially reducing rainfall, and releasing toxins into the environment.

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