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CLOUD experiment resolves puzzle of new aerosol particles in upper troposphere
- CERN's CLOUD collaboration has identified a new source of atmospheric aerosol particles that could improve climate models.
- The CLOUD project uses an ultra-clean chamber and advanced instruments to study the formation and growth of aerosols.
- These microscopic particles, suspended in the atmosphere, are important in seeding and influencing clouds.
- Scientists have struggled to identify the vapours responsible for aerosols in the remote upper atmosphere.
- The new source, isoprene emitted by rainforest, which becomes highly condensable vapours, could help refine climate models.
- Isoprene has been considered negligible in forming new particles, and its impact on climate sensitivity is yet to be quantified.
- The CLOUD experiment has identified several mechanisms by which aerosol particles form and grow in different regions of Earth’s atmosphere.
- The findings could impact climate sensitivity predictions.
- The new CLOUD research highlights the power of accelerator-based science to address societal challenges.
- The CERN project is studying the fundamental structure of the universe by making particles collide at close to the speed of light.
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