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Reports on Geoengineering: artificially steering Earth's climate by reflecting sunlight back into space

Two reports this week by the US National Research Council look at whether humans could artificially steer Earth's climate by reflecting sunlight back into space, or by taking carbon dioxide out of the atmosphere. The twin reports– Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration and Climate Intervention: Reflecting Sunlight to Cool the Earth argue that carbon dioxide removal might have a place in a broader response plan, but sunlight-reflecting technologies are too risky.

The reports, which concluded that cutting emissions remains by far the best option, garnered wide and varied coverage in The Guardian,The Washington PostBloombergClimate ProgressScientific AmericanDot Earth blog and Nature.

Citations

Committee on Geoengineering Climate: Technical Evaluation and Discussion of Impacts; Board on Atmospheric Sciences and Climate; Ocean Studies Board; Division on Earth and Life Studies; National Research Council, Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration , ISBN 978-0-309-30529-7

Committee on Geoengineering Climate: Technical Evaluation and Discussion of Impacts; Board on Atmospheric Sciences and Climate; Ocean Studies Board; Division on Earth and Life Studies; National Research Council, Climate Intervention: Reflecting Sunlight to Cool Earth, ISBN  978-0-309-31482-4

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North America

North America is the northern subcontinent of the Americas covering about 16.5% of the Earth's land area. This large continent has a range of climates spanning Greenland’s permanent ice sheet and the dry deserts of Arizona. Both Canada and the USA are major food producers and some of the largest food exporters in the world. Industrial farms are the norm in North America, with high yields relative to other regions and only 2% of the population involved in agriculture.

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