Tree farms will not save us from AGW

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Tree farms will not save us from AGW

Postby Squire » 18 Mar 2018, 12:44

It’s called “bioenergy with carbon capture and storage,” or BECCS. The world-scale creation of forests to suck the carbon from the atmosphere.

The use of tree farms on a world-wide scale creates risks to land scarcity for food and excessive use of water for the tree plantations which threatens water shortage for farming and other human uses in a scenario where water supplies diminish due to AGW.

BECCS was plan B if mission reductions were not achieved. It appear we need plans B, C and beyond.

https://www.scientificamerican.com/article/tree-farms-will-not-save-us-from-global-warming/

Tree Farms Will Not Save Us from Global Warming
Plantations would have to be massive in scale, and their value is still unproven

By Chelsea Harvey, E&E News on March 13, 2018
Tree Farms Will Not Save Us from Global Warming
Credit: Maria Mekht Unsplash

The farmland of central Illinois might rarely be at the forefront of controversial climate action—but its moment arrived last spring when a Decatur-based ethanol plant became one of the first of its kind to launch an ambitious strategy to combat global warming.

It combines the production of biofuel with a special technology designed to capture the facility’s carbon dioxide emissions.

It’s a fledgling version of a much bigger geoengineering strategy that some experts hope could reduce global emissions by removing carbon dioxide from the atmosphere. It’s known as “negative emissions.”

The idea calls for massive plantations of trees and other crops to draw carbon dioxide out of the air. The trees could then be harvested for the production of energy or biofuels, with carbon capture technology used to sequester their emissions. The whole process would be carbon-negative. This could theoretically cool the climate. But it would have to be done at a massive scale.

It’s still almost an entirely hypothetical concept. But it has rapidly risen to prominence as a strategy for meeting the world’s climate targets established under the Paris Agreement. It’s called “bioenergy with carbon capture and storage,” or BECCS.

Consider this. The Intergovernmental Panel on Climate Change, in its Fifth Assessment Report, presented more than 100 modeled scenarios that it said had a high likelihood of keeping global temperatures within 2 degrees Celsius of preindustrial levels. Nearly all of them assumed that negative emissions technology would be viable and widely used, particularly BECCS.

But there’s a major problem: Research increasingly suggests that the process is not feasible at the scale necessary to make a real dent in global climate goals—at least, not without causing massive environmental or social disruptions. If that’s the case, some experts worry that the models could mislead policymakers into believing there’s a definite “out” if global emissions don’t fall fast enough in the future.
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Re: Tree farms will not save us from AGW

Postby HBS Guy » 18 Mar 2018, 14:57

Bamboo grows much more quickly than trees. Instead of burning it, use it to make paper pulp, flooring etc or turn it into dust and then a slurry and bury it deep. Or turn it into pellets, briquettes etc to burn in peoples fireplaces instead of coal. No net removal of CO2 but no addition from coal either.

Buildings are energy inefficient, can be improved and that will reduce emissions. If we had an NBN telecommuting would take vehicles off the roads.
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Re: Tree farms will not save us from AGW

Postby johnsmith » 18 Mar 2018, 15:24

bamboo is also very strong structurally, and can be used to replace many of the other 'processed woods' used in construction.
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Re: Tree farms will not save us from AGW

Postby HBS Guy » 18 Mar 2018, 20:49

I will probably have bamboo flooring in Tassie.
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