Will the world act on climate change fast enough? If not, some propose that we consider geoengineering - the deliberate large-scale manipulation of the planetary environment. To explore the risks and feasibility of geoengineering, both Harvard University and the University of Washington have proposed testing geoengineering by putting aerosols in the stratosphere or tweaking the brightness of clouds. This Climate Science on Tap will explore geoengineering, and the scientific, political and ethical questions around geoengineering tests. Join us for insightful presentations and a lively panel discussion with philosopher Stephen Gardiner [University of Washington] atmospheric scientist Thomas Ackerman [UW Joint Institute for the Study of the Atmosphere and Ocean], political scientist Sikina Jinna [UC Santa Cruz], and ethicist Christopher Preston [University of Montana].