Improving soil quality can slow global warming

Low-tech ways of improving soil quality on farms and rangelands worldwide could pull significant amounts of carbon out of the atmosphere and slow the pace of climate change, according to a new University of California, Berkeley, ...

New source of global nitrogen discovered

For centuries, the prevailing science has indicated that all of the nitrogen on Earth available to plants comes from the atmosphere. But a study from the University of California, Davis, indicates that more than a quarter ...

New study finds nature is vital to beating climate change

Better stewardship of the land could have a bigger role in fighting climate change than previously thought, according to the most comprehensive assessment to date of how greenhouse gas emissions can be reduced and stored ...

Could planting trees in the desert mitigate climate change?

As the world starts feeling the effects of increasing atmospheric carbon dioxide and consequent global temperature rise, researchers are looking for a Plan B to mitigate climate change. A group of German scientists has now ...

Wood pellets: Renewable, but not carbon neutral

A return to firewood is bad for forests and the climate. So reports William Schlesinger, President Emeritus of the Cary Institute of Ecosystem Studies, in an Insights article published today in the journal Science.

New techniques for removing carbon from the atmosphere

Of the approximately two dozen medical CT scanners scattered throughout Stanford's main campus and medical centers, two can be found nestled in basement labs of the Green Earth Sciences Buildings.

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Carbon sequestration

Carbon sequestration is a geoengineering technique for the long-term storage of carbon dioxide or other forms of carbon, for the mitigation of global warming. Carbon dioxide is usually captured from the atmosphere through biological, chemical or physical processes. It has been proposed as a way to mitigate the accumulation of greenhouse gases in the atmosphere released by the burning of fossil fuels.

CO2 may be captured as a pure by-product in processes related to petroleum refining or from flue gases from power generation. CO2 sequestration can then be seen as being synonymous with the storage part of carbon capture and storage which refers to the large-scale, permanent artificial capture and sequestration of industrially-produced CO2 using subsurface saline aquifers, reservoirs, ocean water, aging oil fields, or other carbon sinks.

Sequestration techniques are not instantaneous and when considering their efficacy, consideration has to be given to the fact that they will therefore be acting on future (not current) CO2 levels. These levels are expected by the IPCC to be higher than today's.

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