British scientists are preparing to launch a series of small-scale outdoor experiments investigating geoengineering techniques designed to mitigate global warming. These initiatives are supported by a £50 million government fund overseen by the Advanced Research and Invention Agency (ARIA).
The upcoming tests will explore various methods intended to increase the reflectivity of the Earth's atmosphere, thereby reducing the amount of sunlight reaching the planet’s surface and temporarily lowering global temperatures. Techniques to be trialled include dispersing reflective particles into the atmosphere, spraying seawater to enhance cloud brightness, and thinning cirrus clouds that have a tendency to trap heat.
Professor Mark Symes, ARIA’s programme director, highlighted the urgency behind the project, explaining that while reducing fossil fuel emissions is vital, current efforts are progressing too slowly to prevent critical climate tipping points such as the loss of Arctic ice and the degradation of rainforests. Speaking to The National Wales, he said geoengineering could offer a means to “buy time to decarbonise” through safely lowering temperatures in the near-term.
The project will carefully avoid using toxic substances and will include comprehensive environmental impact assessments. Scientists also plan to engage with local communities before any outdoor trials commence to address concerns and ensure transparency.
Although these geoengineering methods are considered relatively cost-effective for cooling the planet, some experts voice concerns about potential unintended consequences, including disruptions to weather patterns and the risk that the development of such technologies might lessen the drive to reduce greenhouse gas emissions. Further information about the forthcoming experiments is expected to be released in the near future.
Source: Noah Wire Services