Arctic geoengineering is a way to try to help stop global warming. The Arctic is a very important part of the Earth's climate - the snow and ice help keep the planet cool. But when the Arctic warms up too much, it affects the whole planet.
One way people are trying to stop the Arctic from warming too much is called Arctic geoengineering. This is when scientists use special technology to help cool the atmosphere in the Arctic. For example, they might use technology like spraying tiny particles (like saltwater) into the air. These particles can help stop sunlight from reaching the Earth and cool things down.
So, in short, Arctic geoengineering is a way to help prevent the Arctic from getting too warm, which can help stop global warming.