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Climate Change, 'Greenhouse' effects: Solutions #2
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W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
Trucks use waste heat Engineering360 News Desk video, clip starts at ~2:10 Using waste heat from exhaust to generate electricity. |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
Trucks use waste heat Thanks for getting us back on-topic. There is lots of scope yet for getting more efficiency out of the old combustion engine yet. Note: Exhaust heat recovery system Hence why electric transport is so attractive (much higher efficiency). Provided that is the electricity generation is clean... All on our only one planet, Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
KWSN - MajorKong Send message Joined: 5 Jan 00 Posts: 2892 Credit: 1,499,890 RAC: 0 |
I agree Martin. But... electricity generation has its issues with being 'clean', no matter what 'source' is used to generate it. You wanna see what wind power does? http://www.news.com.au/travel/world-travel/asia/baotou-is-the-worlds-biggest-supplier-of-rare-earth-minerals-and-its-hell-on-earth/news-story/371376b9893492cfc77d23744ca12bc5 |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
Oh my.. rOZZ Music Pictures |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
Meat is horrible It may be delicious, but the evidence is accumulating that meat, particularly red meat, is just a disaster for the environment — and not so great for human beings, too. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
Meat is horrible Just slash and burn more rain forest to make farmland to produce the food to replace meat. |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
Maybe not climate changing, I'm not an expert, but 'Healing' detected in Antarctic ozone hole Researchers say they have found the first clear evidence that the thinning in the ozone layer above Antarctica is starting to heal. |
Darth Beaver Send message Joined: 20 Aug 99 Posts: 6728 Credit: 21,443,075 RAC: 3 |
Winternight I would not get your hopes up that the Ozone is repairing it's self just yet . There is also a hole in the north pole and that is not reducing yet . I have read that there will be no improvement for approx. 40-50 years after 2000 when CFC's where banned. Here is a link that gives better info on what's happening with Ozone levels http://ozonewatch.gsfc.nasa.gov/ |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
Just slash and burn more rain forest to make farmland to produce the food to replace meat. Nope. You've got that one the wrong way round. Reducing the inefficiency of farming the (top of the farming food chain) cattle will allow LESS farmland to be needed than at present. All on our only one planet, Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
Just slash and burn more rain forest to make farmland to produce the food to replace meat. Wrong. Meat can be fed by land that has too high a slope for a tractor to operate upon. Slash and Burn, it comes to the make it so hand wavers. |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
Just slash and burn more rain forest to make farmland to produce the food to replace meat. Nope. We don't see cattle on the hills and highlands over here. They usually get the best most fertile flat fields nearest the farm buildings. Or they are incarcerated inside the buildings and fed antibiotics so that yet more animals can be intensively crammed in. What you do often see over here on the hills and highlands are sheep. Or various contrived crops with lots of drainage for grouse and pheasant shooting. Both of which are a cause of flash floods downstream... All on our only one planet, Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
We don't see cattle on the hills and highlands over here. Of course not. There are no mountains in Great Britain. However in Austria and Switzerland cows are grazing in the mountains. And reindeers are also grazing in the mountains in northern Europe. |
W-K 666 Send message Joined: 18 May 99 Posts: 19012 Credit: 40,757,560 RAC: 67 |
'Sleeper issue' of leaking coal seam gas fields may blow hole in emissions goals Gas has long been touted as cleaner than coal and marketed as a "transition" fuel until the mass take-up of renewable energy becomes viable. |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
Not sure if this is a first for the UK but at the moment, we have zero coal fired power station output. That is, all our coal fired power stations are offline. Instead, as I'm posting now, we have about 17% wind power and about 20% solar (over 1/3rd power generation). Combined cycle gas turbines and nuclear contribute the rest. (There's also about 5% from bio, hydro, and imported nuclear.) Now we 'just' need to expand on that and increase the capacity of our pump-storage hydroelectric schemes. Another interesting snippet is that battery storage is being used in some places on the grid to boost peak supply capacity instead of laying new power lines. Is the great inertia of the Titanic of old ways and old dirty money slowly turning?... All on our only one planet, Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
'Sleeper issue' of leaking coal seam gas fields may blow hole in emissions goals That is an even greater problem for the inevitable fracking leaks and abandonment. Especially so when companies conveniently go bust and leave their workings to leak. We also have outgassing from landfill rubbish dump sites. There are almost all of our activities that we need to clean up. All must be accounted for. However, fossil fuel use and agricultural land (mis)use are the two biggest and easiest impacts to take immediate positive action to correct. All on our only one planet, Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
Meat is horrible can't say I didn't expect that! ;) Just slash and burn more rain forest to make farmland to produce the food to replace meat. farmland don't reduce the amount of oxygen...as it's also plants! they do come with some other negative aspects, like NOx emissions... ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
farmland don't reduce the amount of oxygen...as it's also plants! You forgot Methane, CH4, that is about 20 times more aggresive then CO2 to the greenhouse effect. Will I stop eating red meat? No way! There are so many other ways to stop the global warming coming form sources where I dont participate in! |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
Just slash and burn more rain forest to make farmland to produce the food to replace meat. NOx is a GHG. Also rain forest is about 100+ feet tall of dense plant matter, farm land is about 5 feet tall of not dense plant matter. Better check the amount of CO2 fixed by each. Now remember farm land will require artificial fertilizer, irrigation, weed killers, and tractors for tilling, planting and harvesting. What is that CO2? Then factor in that all the farm products will have to be shipped, usually by CO2 belching oil fired engines, many hundreds of miles from the rain forest to the city. Also check if human CO2 and CH4 emissions from eating plant matter are on par with the cut from having meat eat it. On that last one I was under the impression that both humans and meat could not directly digest plant matter and had to use the same bacteria to digest it for them and that the bacteria produced the CH4 and CO2. Wave you hands and say make it so before you study the problem, that is engineering by the masses! |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
farmland don't reduce the amount of oxygen...as it's also plants! farmland, like planting plants...not raising animals on them! & I don't care so much of the meat...I do eat it 2-3 times a week & that enough...feeling healthy, looking 10y younger, active sportsman! so eat a red meat, nobody is banning it...it will just cost 2-3 times more! ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
Just slash and burn more rain forest to make farmland to produce the food to replace meat. every CH you intake, dissolves into CH4...will you stop eating your: - ketchup - BBQ sause - salad sause - candy - ice-cream - juices & other artificial drinks - cakes etc. meat is too cheap now...enjoy it, while it is! soon, we have to pay for our mistakes..."meat production for every day meal" is one of that! ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
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