Watts Up With That?

Photo - Graphic: Christine Daniloff MIT

Judith Layzer says there’s no easy way out when it comes to climate change — but that geo-engineering might be a last-ditch solution.

From David Chandler, MIT News Office

In the middle of a day filled with a stream of information-packed PowerPoint displays and alarming projections of what the future holds for our planet and our civilization, Judith Layzer’s talk was something of an anomaly.

Layzer, an assistant professor of environmental policy in MIT’s Department of Urban Studies and Planning, was among the speakers at last Friday’s daylong symposium on “Engineering a Cooler Earth.” She immediately changed the tone of the day’s presentations by dispensing with graphs and charts and speaking only with the aid of her quite expressive gestures.

The symposium was a detailed exploration of a subject that has long been nearly taboo even for polite discussion: that instead of, or in addition to, the emissions-reduction strategies usually looked at as a way to stave off the dangers of global climate change, there might be other ways of solving or at least reducing some of the effects faster, more inexpensively or both, through grand schemes collectively known as geo-engineering. These include two major approaches: pulling carbon dioxide right out of the air, or blocking some percentage of incoming sunlight to reduce temperatures. Read the rest of this entry »