As the climate crisis continues to worsen despite warnings by experts, a new potential solution is emerging in international dialogues. Geoengineering, or large-scale man-made interventions to the Earth’s atmosphere, oceans and soils, aims to either reduce carbon dioxide from the environment or regulate sunlight reaching the surface. However, advocates consider geoengineering a false solution to the climate crisis.

“None of the technologies have a track record. All of them come with major risks and unknowns, and in some cases, the effects would be obviously catastrophic,” said Niki Miranda-Martinez, coordinator of the Hands Off Mother Earth campaign, an international collaboration of nongovernment organizations.