"Tree-derived Organic Molecule Shines as Cloud Seeding Champion, CERN Study Finds"

A study conducted at CERN's Cosmics Leaving Outdoor Droplets (CLOUD) chamber has revealed that sesquiterpenes, a family of organic compounds released by trees, have a significant role in cloud formation. These compounds, known as ultra-low-volatility organic compounds (ULVOCs), can grow large enough for water droplets to condense on their surfaces, thus encouraging cloud formation. While the influence of isoprene and monoterpene on cloud formation is well understood, the role of sesquiterpenes has been harder to determine due to their lower emission and quick reaction with ozone. However, the study found that even at low concentrations, sesquiterpenes doubled the rate of cloud formation. Understanding the impact of sesquiterpenes on cloud formation is crucial for improving climate models and predicting the future of Earth's climate.