From 1fcc702ef0efba76f05ab9e3ec8ba2f9a71a96ec Mon Sep 17 00:00:00 2001 From: margaretaj8593 Date: Sun, 12 Jan 2025 08:44:36 +0800 Subject: [PATCH] Add Desert 'carbon Farming' To Curb CO2 --- Desert-%27carbon-Farming%27-To-Curb-CO2.md | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Desert-%27carbon-Farming%27-To-Curb-CO2.md diff --git a/Desert-%27carbon-Farming%27-To-Curb-CO2.md b/Desert-%27carbon-Farming%27-To-Curb-CO2.md new file mode 100644 index 0000000..ce1ce4a --- /dev/null +++ b/Desert-%27carbon-Farming%27-To-Curb-CO2.md @@ -0,0 +1,44 @@ +
Desert 'carbon farming' to suppress CO2
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1 August 2013
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By Matt McGrath
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Environment reporter, BBC News
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Scientists say that planting large numbers of jatropha trees in desert locations could be an effective method of suppressing emissions of CO2.
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Dubbed "carbon farming", researchers state the idea is financially competitive with high-tech carbon capture and storage tasks.
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But critics state the concept might be have unexpected, negative effects including increasing food prices.
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The research study has been published, external in the journal Earth System Dynamics.
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Seeds of modification
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Jatropha curcas is a plant that came from Central America and is extremely well adapted to harsh conditions including extremely arid deserts.
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It is already grown as a biofuel, external in some parts of the world due to the fact that its seeds can produce oil.
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In this research study, German researchers showed that one hectare of jatropha could record up to 25 tonnes of co2 from the atmosphere every year. The researchers based their price quotes on trees presently growing in trial plots in Egypt and in the Negev desert.
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"The outcomes are frustrating," said Prof Klaus Becker, from the University of Hohenheim in Stuttgart.
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"There was great development, a good action from these plants. I feel there will be no issue trying it on a much larger scale, for example ten thousand hectares in the start," he stated.
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According to the researchers a plantation that would cover 3 percent of the Arabian desert would soak up all the CO2 produced by cars and trucks and trucks in Germany over a 20 year period.
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The researchers say that a vital component of the plan would be the schedule of desalination centers. This means that initially, any plantations would be confined to seaside locations.
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They are wanting to develop bigger trials in desert areas of Oman or Qatar. Prof Becker states that unlike other schemes that simply balance out the carbon that individuals produce, the planting of jatropha could be an excellent, short-term solution to environment change.
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"I believe it is a good idea due to the fact that we are actually drawing out carbon dioxide from the environment - and it is totally different in between extracting and avoiding."
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According to the scientist's estimations the costs of curbing co2 by means of the planting of trees would be between 42 and 63 euros per tonne. This makes it competitive with other methods, such as the more high tech carbon capture and storage, external (CCS).
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A number of nations are currently trialling this technology, external however it has yet to be deployed commercially.
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Growing jatropha not just absorbs CO2 but has other benefits. The plants would assist to make desert areas more habitable, and the plant's seeds can be harvested for biofuel state the researchers, providing an economic return.
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"Jatropha is ideal to be become biokerosene - it is even much better than biodiesel," said Prof Becker.
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But other specialists in this location are not persuaded. They point to the reality that in 2007 and 2008 great deals of jatropha trees were planted for biofuel, especially in Africa. But a number of these endeavors ended in tears,, external as the plants were not extremely successful in coping with dry conditions.
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Lucy Hurn is the biofuels campaign manager for the charity, Actionaid. She states that while jatropha was once viewed as the terrific, green hope the truth was very various.
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"When jatropha was introduced it was seen as a wonder crop, it would grow on scrubland or minimal land," she said.
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"But there are often people who need marginal land to graze their animals, they are getting food from that location - we would not class the land as minimal."
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She mentioned that jatropha is extremely harmful and can the land it is grown on, even in a desert. And she likewise had issues about the fairness of the idea.
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"It is still somebody else's land. Why enter and grow these massive plantations to deal with an issue these individuals didn't actually cause?"
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Follow Matt on Twitter, external.
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More on this story
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1 July 2013
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Biofuels are 'illogical strategy'
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Published
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15 April 2013
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Related web links
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Universität Hohenheim
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European Geosciences Union
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