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iamroot@discuss.tchncs.de to Climate - truthful information about climate, related activism and politics.@slrpnk.net · 4 months ago

Carbon capture more costly than switching to renewables, researchers find

techxplore.com

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Carbon capture more costly than switching to renewables, researchers find

techxplore.com

iamroot@discuss.tchncs.de to Climate - truthful information about climate, related activism and politics.@slrpnk.net · 4 months ago
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For most countries around the world, sourcing energy entirely from wind, solar, geothermal, and hydropower by 2050 would reduce their energy needs and costs, improve air quality, and help slow climate change, according to a study in Environmental Science & Technology.
  • Nora@lemmy.ml
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    4 months ago

    Here you go! https://www.independent.co.uk/life-style/health-and-families/veganism-environmental-impact-planet-reduced-plant-based-diet-humans-study-a8378631.html

    • NSRXN@lemmy.dbzer0.com
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      4 months ago

      That’s the opinion of one of the authors of the study. it is not a substantiated by the study itself.

      • Nora@lemmy.ml
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        4 months ago

        Its not just one. This is pretty common knowledge among people in their field. These are specialists in their field, their opinions don’t just come from nothing, they are informed by information from the studies.

        https://www.livekindly.com/scientists-say-going-vegan-help-save-planet/

        https://www.livekindly.com/eating-vegan-is-the-most-effective-way-to-combat-climate-change-says-largest-ever-food-production-analysis/

        • NSRXN@lemmy.dbzer0.com
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          4 months ago

          your first link doesn’t speak to your claim at all. your second link depends on the same author.

          • Nora@lemmy.ml
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            4 months ago

            Here’s a link to the research article itself with all the data from which they drew their conclusion: https://josephpoore.com/Science 360 6392 987 - Accepted Manuscript.pdf

            • NSRXN@lemmy.dbzer0.com
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              4 months ago

              they are misusing the LCA data. since it was gathered through disparate methodologies, it can’t be combined as they have done.

              edit: regardless, this paper doesn’t support the claim you made.

              • Nora@lemmy.ml
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                4 months ago

                They aren’t, but I don’t feel like going into it with you. I will use a simpler data-point to prove that my initial claim was correct.

                Livestock and their byproducts account for at least 32,000 million tons of carbon dioxide (CO2) per year, or 51% of all worldwide greenhouse gas emissions. If everyone went vegan, that would remove the majority of greenhouse gas production. So put simply, it would be the “biggest” thing everyone could do to reduce CO2 emissions.(That is just CO2, there are many other horrible things related to animal agriculture.)

                Sources: Article: https://www.independent.co.uk/climate-change/news/study-claims-meat-creates-half-of-all-greenhouse-gases-1812909.html

                The paper: https://www.fao.org/4/a0701e/a0701e00.htm

                • NSRXN@lemmy.dbzer0.com
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                  4 months ago

                  your article makes a claim unsubstatiated by the paper itself. and the paper is almost 2 decades old, and does not, itself, make any claim about the best way for anyone to reduce their GHGe.

                  • Nora@lemmy.ml
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                    3 months ago

                    Here’s a brand new peer-reviewed study showing that the majority of climate change is caused by animal agriculture.

                    https://plantbasednews.org/news/environment/animal-ag-leading-cause-climate-change/

                • NSRXN@lemmy.dbzer0.com
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                  4 months ago

                  They aren’t, but I don’t feel like going into it with you

                  they are. their reference papers state this explicitly

                • NSRXN@lemmy.dbzer0.com
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                  4 months ago

                  If everyone went vegan, that would remove the majority of greenhouse gas production.

                  there is no causal mechanism by which anyone going vegan reduces any ghg production

                  • Nora@lemmy.ml
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                    4 months ago

                    Oh Okay, you’re just out of your mind. Thanks for confirming that so I don’t have to waste my time anymore.

                  • silence7@slrpnk.netM
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                    4 months ago

                    This is unfortunately not true. There are several mechanisms through which meat production increases greenhouse gas emissions:

                    1. Bacteria in the stomachs of cattle and other ruminants produce methane, a potent greenhouse gas. So the more cattle being raised for meat or milk, the more methane in the atmosphere. Reduce the size of the herd, and the concentration drops.
                    2. Animals consume energy from the food they eat; not every calorie they eat ends up as meat or milk. In the case of cattle, only about 1/10 ends up in that form. So a lot of land needs to be converted from natural ecosystems to produce food for animals. This conversion causes carbon sequestered in trees and soils to be released into the atmosphere.
                    3. That increased area of agricultural land needs fertilizer, and the process for making nitrogen fertilizer involves burning huge amounts of natural gas. This both releases CO₂ into the atmosphere, as well as CH₄ via pipeline leaks.

                    Both of you need to cool it here.

                • NSRXN@lemmy.dbzer0.com
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                  4 months ago

                  Livestock and their byproducts account for at least 32,000 million tons of carbon dioxide (CO2) per year, or 51% of all worldwide greenhouse gas emissions.

                  that’s simply not true. GHGe for all of agriculture come out to about 20% of total GHGe.

                • silence7@slrpnk.netM
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                  4 months ago

                  If everyone went vegan, that would remove the majority of greenhouse gas production.

                  This is just false. The biggest source has long been fossil fuel burning, not agriculture, and that remains true even when you include fossil fuel use by agriculture.

                  On top of that, meat and dairy are only part of agriculture; a big chunk of methane emissions from agriculture come from rice farming.

                  A huge cut in meat (and dairy) consumption is going to be needed to get to net zero emissions, but it’s not a majority of what is needed. People recommend it strongly in large part because ending meat consumption doesn’t cost people money, so everybody can do it.

                  Please don’t repeat false claims here.

                  • Nora@lemmy.ml
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                    3 months ago

                    It’s not a false claim. Here’s a more recent peer-reviewed study.

                    https://plantbasednews.org/news/environment/animal-ag-leading-cause-climate-change/

              • Nora@lemmy.ml
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                3 months ago

                Here you go, this one does. and it’s peer-reviewed.

                https://plantbasednews.org/news/environment/animal-ag-leading-cause-climate-change/

                • NSRXN@lemmy.dbzer0.com
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                  3 months ago

                  that doesn’t say

                  Going vegan is the single biggest thing you can do to reduce your carbon footprint

                • NSRXN@lemmy.dbzer0.com
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                  3 months ago

                  that’s a creative way to interpret the finfings

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

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