Check out the cool map showing how many carbon capture projects proposed for the coasts of Texas and Louisiana. Funny only one has received EPA approval so far. https://reut.rs/33Yf1gG
As the title suggests, I was asked by a hemp producer if it is possible to measure the amount of carbon sequestered by his hemp crops. I am skeptical that hemp actually sequesters any carbon long-term because the hemp is harvested in a single season and the carbon should in theory re-enter the cycle once the product degrades. But on the chance that hemp could take carbon out of the air and keep it out, what would the equation be to calculate this? Most carbon sequestration technology available seems to be for measuring soil rather than the plants. I have seen equations to measure by single plant but I was hoping there could be something for just land mass by a coefficient or really anything that avoids measuring a single plant. Thanks to all who help tackle this problem.
In an "empty" swimming pool there is about a cubic meter of CO2 gas (assuming ~400ppm). I was thinking that one could build a Carbon Sequestration Machine near power plants, especially power plants that generate electricity in excess of the grid's demands.
Given that the electricity being used to fuel the process would have been wasted otherwise; Here's how I was thinking it could work and yield a net benefit to the environment in terms of being net carbon negative for the atmosphere:
A compressor draws air into a cylinder, a mantle heats the compressed air in the cylinder, at perhaps 600 degrees Celsius, the Carbon breaks off of the CO2 molecules, yielding C + O2. The otherwise unaltered environmental air is ventilated back into the atmosphere, and the Carbon deposits in the tank are emptied into barrels and used for industrial purposes.
How much benefit would something like this yield, and would it compete with battery storage, or be a viable means to offset carbon caps for emitters / cheaper than or equivalent to carbon tax credits?
Is this economically viable? Is the geology of the PolyMet NorthMet tract the right stuff? Would this reduce the size of the controversial tailings pond?
Polymet Mining has applied to develop a nickel mine in northeastern Minnesota. This is quite controversial (jobs vs environment vs geopolitically touchy metals...) and the project is being batted back and forth. From an environmental perspective, the biggest drawback seems to be the proposed tailings pond. Offsetting that, Nickel is a significant component of the anodes of certain Lithium ion battery compositions ... and batteries are a component of the ongoing shift away from hydrocarbon fuels in both transportation and grid power generation. And of course there's the prospect of repeating past mistakes in a remote and environmentally sensitive watershed.
I am curious whether there may be some environmental benefit in using the basalt overburden for carbon sequestration. Farmers spread fine granular minerals on their fields periodically to manage soil pH. Basalt has been shown to accomplish that and to capture a significant amount of CO2 and permanently moving it into the soil. The overburden and tailings need to be moved and processed anyway, could they be spread over million of acres of farm fields instead of piled up and / or put in a tailings pond?
So r/geology, does the PolyMet project have the right ingredients and economics for (literally) catalyzing carbon sequestration?
Repost: https://twitter.com/ashish_a_malik/status/1474241408361906177
https://www.findaphd.com/phds/project/super-dtp-impact-of-multiple-climate-stressors-on-microbial-processes-and-carbon-sequestration-in-peatlands/?p140154
Peatlands represent one of the largest stores of terrestrial carbon, accounting for ~21% of the global total soil carbon stock. Increasing food and energy needs have led to drainage of peatlands for cropping and forestry that cause huge losses of carbon. Climate warming, increased drought occurrences and fires in these fragile ecosystems exacerbate uncertainty over the fate of peatland carbon. Increased effort is therefore required to develop sustainable management approaches for peatlands, which is expected to make an important contribution to climate change mitigation in Scotland.
Drainage and climate stressors such as drought and warming impact the hydrology of wetlands such that the removal of water-logged anoxic conditions leads to increased decomposition of the otherwise preserved peat organic matter and release of CO2 back to the atmosphere (Kitson & Bell, 2020; Tiemeyer et al., 2016). Such conditions may reduce methane emissions but increased CO2 release outweighs the climate benefits of methane reduction in terms of long-term global warming potential (Huang et al., 2021). Fires, on the other hand, primarily affect belowground carbon cycling through change in aboveground organic matter and therefore decomposition rates and CO2 flux.
Microbes (bacteria, archaea, viruses, fungi and other microeukaryotes) act as gatekeepers of soil-atmosphere carbon exchange because their growth, activity and interactions with the environment control the fate of carbon inputs (Malik et al., 2018). However, there is a lack of mechanistic understanding of the microbial physiological processes in peatlands that are responsible for carbon cycling, and their sensitivity to multiple climate stressors such as warming, drought and fire (Ritson et al., 2021).
The project aims to investigate microbial carbon cycling processes in intact and degraded peatlands that are under the influence of climate extremes, which are becoming increasingly frequent. There is a general consensus that degraded peatlands are less resilient to cli
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Hi all,
I think we have the technology to give 10 billion people expected by 2050 a comfortable modern New Urbanist lifestyle - but I don't know that we have the willpower. We can have all the power we need through a mix of renewables and nuclear breeder reactors that eat nuclear waste. (I used to laugh at George W Bush calling nuclear 'renewable' until I realised uranium particles in the ocean are topped up by erosion over geologic timescales. Breeder reactors that get 90 times the energy out of each bit of uranium could run the world for billions of years from uranium in seawater!)
(Edit - I'm investigating the costs of Bren Smith's shellfish and seaweed farms, so will remove that claim.)
We can grow all the food we need via a variety of sustainable regenerative ag, low-till or no-till ag, seaweed fertiliser, off-season prawn food grown in the same pond that in season prawns will be grown in (no by-catch), etc.
But it's the timing of it all. On current trends we're going to have 16% MORE CO2 emissions annually by 2030, which means we're trending towards 2.7 degrees of warming. (Way above the 1.5 degrees maximum allowable warming.)
There are a number of emergency breaks we can put on - from Solar Radiation Management (which we could scale up slowly and incrementally, evaluating side effects at each step) to huge carbon sequestration schemes.
One of these has a carbon price of $10 per ton and also helps our ocean. The video below explains. $10 per ton for the 1 TRILLION tons of carbon we need to store is $10 TRILLION dollars. Spread over a century, that's $100 billion a year, or 1/19th of the global military budget.
The question is, can diplomatic measures and new unions (like the AU) get the world to be 1/19th less paranoid about fighting each other? If we could do that - we could return carbon levels to normal over time.
Basically the title. Thanks!
Further to my ongoing due diligence on Canada Nickel (CSE $CNC) (OTCQB $CNIKF) (FRA $4E0), below is a news release that could be considered a company catalyst:
Canada Nickel Demonstrates Carbon Sequestration Potential of Tailings from the Crawford Nickel Sulphide Project https://www.prnewswire.com/news-releases/canada-nickel-demonstrates-carbon-sequestration-potential-of-tailings-from-the-crawford-nickel-sulphide-project-301420832.html
The laboratory tests were conducted by researchers from Kingston Process Metallurgy and Queen's University and demonstrate that the project tailings naturally sequester CO2 into a mineralized form, which industry research has demonstrated is permanent. This is a critical foundation of Canada Nickel's NetZero initiative to become the first zero carbon nickel operation. Canada Nickel's wholly-owned Net Zero Metals subsidiary has successfully applied and registered trademarks in various jurisdictions for NetZero Nickel™, NetZero Cobalt™ and NetZero Iron™ in expectation that the Company believes it can be successful in achieving its zero carbon initiatives.
Highlight(s)
- Initial lab scale testing demonstrates that Crawford tailings have the potential to capture 17.5 kg CO2 per tonne of tailings - more than 3 times the amount required to offset the Project's projected carbon footprint. Any amounts in excess of projected 4.6 kg CO2 per tonne could be sold for carbon credits.
Management Statement
>Mark Selby, Chair and CEO of Canada Nickel commented, "Today's announcement is a critical demonstration that our tailings have the fundamental capacity to capture CO2 in amounts that exceed what we believe will be required to achieve net zero carbon production for our concentrates. Any CO2 sequestration in excess of the 4.6 kg per tonne of tailings level would be potentially available for sale as carbon credits. Work is underway on a series of larger scale tests aimed at demonstrating that Crawford tailings can be exposed to enough CO2 for a sufficient time period to achieve the sequestrations levels that were achieved at a lab scale. We look forward to seeing the results over the coming year."
Read more [https://www.prnewswire.com/news-releases/canada-nickel-demonstrates-carbon-sequestration-potential-of-tailings-from-the-crawford-ni
... keep reading on reddit ➡Further to my ongoing due diligence on Canada Nickel (OTCQB $CNIKF) (CSE $CNC) (FRA $4E0), below is a news release that could be considered a company catalyst:
Canada Nickel Demonstrates Carbon Sequestration Potential of Tailings from the Crawford Nickel Sulphide Project https://www.prnewswire.com/news-releases/canada-nickel-demonstrates-carbon-sequestration-potential-of-tailings-from-the-crawford-nickel-sulphide-project-301420832.html
The laboratory tests were conducted by researchers from Kingston Process Metallurgy and Queen's University and demonstrate that the project tailings naturally sequester CO2 into a mineralized form, which industry research has demonstrated is permanent. This is a critical foundation of Canada Nickel's NetZero initiative to become the first zero carbon nickel operation. Canada Nickel's wholly-owned Net Zero Metals subsidiary has successfully applied and registered trademarks in various jurisdictions for NetZero Nickel™, NetZero Cobalt™ and NetZero Iron™ in expectation that the Company believes it can be successful in achieving its zero carbon initiatives.
Highlight(s)
- Initial lab scale testing demonstrates that Crawford tailings have the potential to capture 17.5 kg CO2 per tonne of tailings - more than 3 times the amount required to offset the Project's projected carbon footprint. Any amounts in excess of projected 4.6 kg CO2 per tonne could be sold for carbon credits.
Management Statement
>Mark Selby, Chair and CEO of Canada Nickel commented, "Today's announcement is a critical demonstration that our tailings have the fundamental capacity to capture CO2 in amounts that exceed what we believe will be required to achieve net zero carbon production for our concentrates. Any CO2 sequestration in excess of the 4.6 kg per tonne of tailings level would be potentially available for sale as carbon credits. Work is underway on a series of larger scale tests aimed at demonstrating that Crawford tailings can be exposed to enough CO2 for a sufficient time period to achieve the sequestrations levels that were achieved at a lab scale. We look forward to seeing the results over the coming year."
Read more [https://www.prnewswire.com/news-releases/canada-nickel-demonstrates-carbon-sequestration-potential-of-tailings-from-the-crawford-nick
... keep reading on reddit ➡