The U.N. climate report released Monday presents a major leap forward in predicting how geoengineering to limit global warming might affect the planet, although scientists said the greatest hurdle remains deciding whether to use the controversial methods.
Geoengineering involves large-scale interventions that shift the climate, generally with an aim of cooling the Earth.
The United Nations panel addressed two types of geoengineering in the report — solar radiation management and greenhouse gas removal.
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