--- title: "Scientists Unveil Plan to Mount Cannons on the Moon to Fight Climate Change" description: "A team of astrophysicists is suggesting we could protect the Earth from global warming by shooting lunar dust into space to shade the Earth from sunlight." date: "2023-02-09" modified: "2023-02-09" authors: - name: "Victor Tangermann" job_title: "Senior Editor" link: "https://futurism.com/authors/victor" url: "https://futurism.com/the-byte/scientists-plan-mount-cannons-moon-fight-climate-change" categories: - "Astronomy" - "Climate Change" - "Environment" - "Moon" - "Science & Energy" - "Space" tags: - "global warming" - "lunar dust" - "solar geoengineering" - "the digest" --- # Scientists Unveil Plan to Mount Cannons on the Moon to Fight Climate Change ![A team of astrophysicists is suggesting we could protect the Earth from global warming by shooting lunar dust into space to shade the Earth from sunlight.]() *\Image: NASA/Futurism\* ## Dust Bunny A team of astrophysicists is suggesting we could protect the Earth from global warming by shooting lunar dust into space to shade the Earth from sunlight, [*The Washington Post* reports](). The Moonshot idea, as detailed in a [new paper]() published this week in the journal *PLOS Climate,* would involve using massive cannons, mounted on the lunar surface, to launch dust that would eventually settle in orbit between the Sun and the Earth. ## Shoot Out the Sun It's a new and intriguing interplanetary spin on the concept of solar geoengineering, the idea of shooting particles into the Earth's stratosphere to shade the surface below, which has already [proven highly controversial]() among scientists. After all, they argue, we still have no idea what the outcome of such an invasive technique could be. But the team behind the new paper argues that it's still better than doing nothing. "We cannot as humanity let go of our primary goal of reducing greenhouse gas emissions here on our planet," Ben Bromley, lead author and astrophysicist at the University of Utah, told the *WaPo*. "That’s got to be the first job." The researchers used computer simulations to see what vast quantities of lunar dust could do in orbit around the Earth. They found that the dust could cut sunlight back on the planet's surface by one to two percent. "Our idea is one — and it’s a very, very intensive one — to contribute to climate change mitigation, if we need more time here at home," Bromley told the newspaper. ## Space Parasol It's not the first time researchers have dreamed up space-based potential solutions to our climate woes. In 1989, for instance, scientists at the Lawrence Livermore National Laboratory suggested we could use a gigantic [1,250-mile glass shield]() to reflect the Sun's rays. Others have proposed using [armies of tiny spacecraft]() to act as small sunshades, or even giant swarms of "[space bubbles]()" to block out the Sun. But using lunar dust, which already exists in abundance on the Moon, would be far more feasible than launching all of the materials from the Earth's surface, a deceivingly simple idea that could allow us to keep our cool for a little longer. "We really do focus on lunar dust, just plain old, as-it-is lunar dust, without any indication of changing its shape," Bromley told the *WaPo*. **READ MORE:** [Researchers want to create a dust shield in space to fight climate change]() \[*The Washington Post*\] **More on geoengineering:** *[Startup Says It's Started Releasing Chemical Into Atmosphere]()* ## Author I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida. ### Author social links [Bluesky]()