Pinatubo lessons for geoengineering
Scientists who study ideas to engineer the climate to mitigate global warming say we should be ready to deploy an armada of instrumentation when Earth has its next major volcanic eruption.
Data gathered in the high atmosphere would be invaluable in determining whether so-called "geoengineering" solutions had any merit at all.
It would have to be an event on the scale of Mount Pinatubo in 1991.
Prof Alan Robock from Rutgers University told our correspondent Jonathan Amos how such an eruption would aid understanding.
15 Feb 2015