The region of Ethiopia called the Middle Awash, some 140 miles northeast of the capital of Addis Ababa, is a hot, harsh and inhospitable place–a rocky desert punctuated by tree-lined rivers, the occasional lake and patches of lava that are slowly being buried by sediments flushed out of the hills by the torrential rains that come along twice a year. But between 5 million and 6 million years ago, the landscape here was very different.
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Climate change: Can we even do it? Should we even try?
The Massachusetts Institute of Technology has long been known worldwide for its engineering programs, and a symposium at MIT this week will draw scientists from around the globe to focus on a hot facet of the field — climate engineering.