Geoengineering is a method that uses advanced technology to try to cool the Earth and fight climate change. There are two main approaches: reflection and absorption. Reflection involves techniques like spraying tiny particles into the sky or using mirrors in space to bounce sunlight away from Earth, which helps lower temperatures. Absorption focuses on capturing carbon dioxide from the air, either by planting more trees or using machines designed to absorb this gas. While these methods offer potential solutions, many people worry about the risks and unknowns of using technology to fix a problem that might be caused by other technologies, like pollution from factories and cars. They fear that geoengineering could have unintended side effects or might distract from reducing greenhouse gas emissions through cleaner energy and conservation efforts.

Geoengineering is using science and technology to try to cool the Earth and prevent climate change. For example, scientists might spray tiny particles into the sky, put mirrors in space to reflect sunlight away from the Earth or develop artificial trees designed to absorb more CO2 from the air than a regular tree.