U.S. scientists test secretive cloud-brightening technique
Climate change is becoming increasingly dangerous for our planet, and global warming is a major factor in this threat. The United States is attempting to address this problem by implementing innovative solutions, although some express concerns about the environmental impact of such research.
11:14 AM EST, December 2, 2024
The climate crisis is primarily caused by burning fossil fuels: coal, oil, and natural gas. This process produces massive carbon dioxide emissions into the atmosphere, contributing to the greenhouse effect. This situation not only threatens biodiversity and ecosystem stability but also leads to more frequent and intense weather phenomena, such as heatwaves, hurricanes, and droughts, which negatively impact humanity and the economy.
According to a 2022 UN report, a rapid and significant reduction in greenhouse gas emissions is necessary to avoid irreversible changes in the global climate. However, are there other ways to prevent this? A new, groundbreaking concept proposed by U.S. scientists may help protect the Earth.
Innovative experiment in the sky
Scientists from the University of Washington conducted an innovative experiment in the San Francisco Bay in Alameda, California. They focused on increasing cloud brightness, which would allow more solar rays to be reflected into space. These actions could temporarily lower the Earth's temperature and alleviate the effects of global warming.
This method, known as solar radiation modification or solar geoengineering, has sparked considerable controversy. Due to fears of opposition, the experiment organizers decided to conduct their research in secrecy. Details of the experiment were described by "The New York Times."
During the research, a device was mounted on board the Hornet aircraft carrier that sprayed aerosols of sea salt particles. This allowed for the creation of new clouds that can reflect solar radiation, potentially reducing the greenhouse effect.
The results of the experiment require further analysis, which will take several months. Although the device itself may not be widely used for temperature reduction, the data obtained are valuable for understanding the interactions between pollutants and cloud formation.
Mixed reactions to the experiment
The project received various reactions—from interest to harsh criticism. The White House officially distanced itself from this project, stating in a release to "The New York Times" that it is not involved in these activities.
"The U.S. government does not participate in the solar radiation modification (SRM) taking place in Alameda, California, or anywhere else."
Solar geoengineering is a topic of heated debate among scientists and environmental activists. David Santillo from Greenpeace International is skeptical of marine cloud brightening, warning against unpredictable consequences.
"This could lead to changes in climate patterns, not only over the sea but also on land—a scenario we should avoid."
Similarly, Karen Orenstein from Friends of the Earth US warns that geoengineering is a risky experiment and that the focus should be on moving away from fossil fuels as a way to combat climate change.
Sarah Doherty from the University of Washington emphasizes that testing new technologies is crucial, but we must also be aware of their potential negative impacts.
"We need to study possible side effects, such as changes in ocean circulation and temperatures, which can affect fisheries, and potential changes in precipitation distribution."
