A technofix for the climate?

Geoengineering
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Source: ClimateViewer News

October 10, 2018

Large-scale technological interventions to “fix” the climate crisis are moving up on the political agenda.

A technofix for the climate? Marine geoengineering

Part I of “A technofix for the climate?” (https://www.youtube.com/playlist?list…) presents some of the marine geoengineering approaches with a focus on their risks, negative impacts and potential side-effects, as well as on the question of governance of these technologies.

Some climate scientists are now proposing geoengineering interventions in the oceans to halt global warming, such as fertilizing the oceans to draw down CO2 or to cover up large oceanic areas with synthetic materials to make their surfaces more reflective letting them absorb less sunlight and therefore less heat. But these schemes to manipulate our ecosystems and global natural processes come with great risks and uncertainties, as well as with foreseeable adverse impacts on marine ecosystems and human communities.

A technofix for the climate? Land based geoengineering (BECCS)

Part II of “A technofix for the climate?” (https://www.youtube.com/playlist?list…) presents BECCS as the posterchild of Carbon Dioxide Removal technologies on land. We focus on the risks, negative impacts and potential side-effects of BECCS, and address some of the real solutions the land sector offers for tackling climate change.

Some climate scientists are now proposing geoengineering interventions on land to halt global warming – most prominently BECCS (Bio-Energy with Carbon Capture and Storage), which combines two controversial technologies: bioenergy and CCS. These schemes to manipulate our ecosystems and global natural processes come with great risks and uncertainties, as well as with foreseeable adverse impacts on land ecosystems and human communities depending on them.

A technofix for the climate? Atmospheric geoengineering (Solar Radiation Management)

Part III of “A technofix for the climate?” (https://www.youtube.com/playlist?list…) presents SAI as a method of Solar Radiation Management and focusses on the risks, negative impacts and potential side-effects of this “solution” for tackling climate change. These include severe implications for international peace and security.

Some climate scientists are now proposing geoengineering interventions in the atmosphere to suppress global warming – most prominently SAI (Stratospheric Aerosol Injection): The idea here is to inject inorganic particles – such as sulphur dioxide – into the stratosphere to block incoming sunlight.

In other schemes, plastic beads and other materials are proposed to cover ice surfaces to prevent them from melting. These schemes to manipulate our ecosystems come with great risks and uncertainties, as well as with foreseeable adverse impacts on our natural ecosystems and human communities depending on them.

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