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Volcanic Eruption Highlights Contrail Conundrum

“A single aircraft operating in conditions favorable for persistent contrail formation appears to exert a contrail-induced radiative forcing some 5000 times greater (in W m−2 km−1) than recent estimates of the average persistent contrail radiative forcing from the entire civil aviation fleet. This study emphasizes the need to establish whether similar events are common or highly unusual for a confident assessment of the total climate effect of aviation to be made.”

Haywood, J. M., R. P. Allan, J. Bornemann, P. Forster, P. N. Francis, S. Milton, G. Rädel, A. Rap, K. P. Shine, and R. Thorpe (2009), A case study of the radiative forcing of persistent contrails evolving into contrail-induced cirrus, J. Geophys. Res., 114, D24201, doi:10.1029/2009JD012650.

Artificial Clouds

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The Environmental Modification Accountability Act #ENMODAA

An Act To End Atmospheric Experimentation Without Notification

Our solution is an addendum to the international weather warfare ban requiring two things:
• TRANSPARENCY: a worldwide requirement to give 48 hour notice before modifying or experimenting in our sky or surrounding atmosphere.
• VERIFICATION: create a worldwide citizen-powered sensor network to monitor atmospheric conditions, record video footage of sky conditions, analyze rainfall samples, and display atmospheric aerosols in real-time on a publically available website.


Hands Off Mother Earth Manifesto: A Permanent Ban on Geoengineering

110 civil society organizations and popular movements denounce geoengineering and demand an immediate stop to all open-air experiments.

If your organization would like to join the fight against geoengineering and endorse the HOME Manifesto, please send an email to [email protected].