Scientists debate solar dimming plans and field experiment risks
Researchers worldwide are divided over whether to proceed with outdoor experiments for artificial sun dimming known as solar geoengineering.
Proposed methods for cooling the planet
Solar geoengineering aims to cool the climate by altering energy entering or leaving the Earth system. The best-known proposal involves dispersing sulfur dioxide high in the atmosphere to form reflective aerosols. Other main proposals include adding sea-salt particles to low clouds over the ocean.
Concerns about outdoor field tests
Outdoor field experiments are particularly contentious among researchers and other experts. Scientists remain divided over whether these tests should proceed at all or under specific conditions. The debate blurs the line between conspiracy theories and real scientific discussion.
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