A U.K. project examining the feasibility of geoengineering Earth's climate to reduce global warming will no longer involve the Stratospheric Particle Injection for Climate Engineering (SPICE) project. The project was to investigate whether aerosols, such as sulfate particles, could be injected into Earth's stratosphere to scatter sunlight back into space, thereby stalling global warming. But following concerns that researchers on the SPICE project could have a commercial interest in its success, planners canceled the project on 16 May.
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