Climate engineering — which could slow the pace of global warming by
injecting reflective particles into the upper atmosphere — has emerged in recent
years as an extremely controversial technology. And for good reason: it carries
unknown risks and it may undermine commitments to conserving energy. Some critics
also view it as an immoral human breach of the natural world. The latter objection,
David Keith argues in A Scientist''s Case for Climate Engineering,
is groundless; we have been using technology to alter our environment for years. But
he agrees that there are large issues at stake. A leading
scientist long concerned about climate change, Keith offers no na?ve proposal for an
easy fix to what is perhaps the most challenging question of our time; climate
engineering is no silver bullet. But he argues that after decades during which very
little progress has been made in reducing carbon emissions we must put this
technology on the table and consider it responsibly. That doesn''t mean we will
deploy it, and it doesn''t mean that we can abandon efforts to reduce greenhouse gas
emissions. But we must understand fully what research needs to be done and how the
technology might be designed and used. This book provides a clear and accessible
overview of what the costs and risks might be, and how climate engineering might fit
into a larger program for managing climate change.

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