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Ken Caldeira

Geoengineering — A Magic Bullet Against Global Warming?

written by Environmental News Network

Dr. Ken Caldeira, of the Carnegie Institution of Washington provided a balanced look at the potential benefits and also the costs and possible harm that geoengineering techniques could offer in our quest to find a “Magic Bullet” to counter global warming.

Can global warming be mitigated by a technological fix such as injecting light-blocking particles into the atmosphere or chemically “scrubbing” excess greenhouse gases from the atmosphere? Department of Global Ecology scientist Ken Caldeira addressed this question in his testimony to the U.S. House of Representatives Committee on Science and Technology in a hearing titled “Geoengineering: Assessing the Implications of Large-Scale Climate Intervention” on November 5, 2009.

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November 6, 2009 1 comment
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Geoengineering the Planet: The Possibilities and the Pitfalls

written by Yale Environment 360

Interfering with the Earth’s climate system to counteract global warming is a controversial concept. But in an interview with Yale Environment 360, climate scientist Ken Caldeira talks about why he believes the world needs to better understand which geoengineering schemes might work and which are fantasy — or worse.

Atmospheric scientist Ken Caldeira first became known for his groundbreaking work on ocean acidification, a phrase originally coined as a headline for one of his papers. Of late, however, Caldeira’s research has led him into the controversial area of geoengineering — the large-scale, deliberate manipulation of the Earth’s climate system.

Many scientists have shied away from the subject because they feel it is a wrongheaded and dangerous path to pursue. But Caldeira — who heads a research lab at the Carnegie Institution for Science’s Department of Global Ecology at Stanford University — has not been so dismissive, in part because his climate modeling has demonstrated that some geoengineering schemes may indeed help reduce the risk of climate change. In fact, few scientists have thought harder about the moral, political, and environmental implications of geoengineering.

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October 21, 2009 0 comment
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