'Charismatic carbon': Seaweed farming to combat climate change

According to the Intergovernmental Panel on Climate Change (IPCC), addressing carbon emissions from our food sector is absolutely essential to combatting climate change. While land and agriculture took center stage in the ...

Structurally complex forests better at carbon sequestration

Forests in the eastern United States that are structurally complex—meaning the arrangement of vegetation is highly varied—sequester more carbon, according to a new study led by researchers at Virginia Commonwealth University.

Seaweed sinks deep, taking carbon with it

Seaweed may be a quiet achiever when it comes to mitigation of greenhouse gases, with it now shown to travel far and deep beyond coastal areas and thus to play a key role in sequestering carbon from the atmosphere.

Researchers solve mystery of how gas bubbles form in liquid

The formation of air bubbles in a liquid appears very similar to its inverse process, the formation of liquid droplets from, say, a dripping water faucet. But the physics involved is actually quite different, and while those ...

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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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