Temporary cooling of the Earth – what scientists have planned

Scientists have compared three geoengineering strategies: methane removal, CO₂ capture, and a solar shield. Forced methane scrubbing can quickly lower temperatures, but the effect is temporary. CO₂ sequestration provides long-term stability. Technical barriers and chemical risks, including the ozone balance, remain serious.

Scientists have conducted a comparative analysis of three geoengineering strategies for stabilizing the global environment: large-scale extraction of methane from the atmosphere, long-term capture and isolation of carbon dioxide, and methods of artificial solar radiation management. Mathematical modeling showed that forced methane scrubbing can sharply reduce temperatures, but the effect will be temporary — if the process stops, climate rebound will resume. CO₂ sequestration, on the other hand, provides more prolonged stability. The main technical obstacle is the negligible concentration of methane in the air — about two parts per million. Active intervention can also destabilize chemical processes in the atmosphere, including the ozone balance, creating threats to ecology and health. The study is purely hypothetical and does not assess the readiness of specific technologies for practical launch. The author of the material is Rami Madrich.