A Cheap and Easy Plan to Stop Global Warming

Intentionally engineering Earth’s atmosphere to offset rising temperatures could be far more doable than you imagine, says David Keith. But is it a good idea?

http://www.technologyreview.com/featuredstory/511016/a-cheap-and-easy-plan-to-stop-global-warming/?utm_campaign=newsletters&utm_source=newsletter-weekly-business&utm_medium=email&utm_content=20130208