Message boards :
Politics :
Climate Change, 'Greenhouse' effects and Politics: DENIAL (#5)
Message board moderation
Previous · 1 . . . 12 · 13 · 14 · 15 · 16 · 17 · Next
Author | Message |
---|---|
rob smith Send message Joined: 7 Mar 03 Posts: 22493 Credit: 416,307,556 RAC: 380 |
Generally coke is used in the reduction of iron ore to "pig" iron in a blast furnace. The coke is the reducing agent, other materials can be used, but they tend to be very much less energy efficient, or very toxic. The feed for the blast furnace is normally a mixture of new iron ore plus scrap iron (which is frequently of unknown composition). Electric arc/induction furnaces are then used to convert the "pig" iron into the required grade of steel by removing some of the carbon (pig has typically ~5% carbon, and steel is between 0.1 and 4%) and adding the various alloying elements. In days of yore the "pig" iron was run out of the blast furnace into moulds called "pigs", then remelted to make steel. But these days the "pig" iron is frequently run out of the blast furnace straight into the arc furnace as this is far more energy efficient. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30974 Credit: 53,134,872 RAC: 32 |
Much cleaner is to use electric arc furnaces Yep. Generate the electricity with the coke! |
ML1 Send message Joined: 25 Nov 01 Posts: 21099 Credit: 7,508,002 RAC: 20 |
Much cleaner is to use electric arc furnaces Don't suggest that to Australia or China!! 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: 21099 Credit: 7,508,002 RAC: 20 |
Steel is iron with added carbon. Very much indeed so: Cumbria coal mine: Climate tsar urged to quit over 'reckless' plan wrote: ... They say it will produce coking coal for the UK's steel industry, and save on imports. All a game of corruptly 'sweating' dirty old 'assets' for short term profit and the world be damned?... Very dirty indeed! 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: 21099 Credit: 7,508,002 RAC: 20 |
Very simply: Climate crisis deaths 'will be worse than Covid' wrote: The world is heading for mortality rates equivalent to the Covid crisis every year by mid-century unless action is taken, according to Mark Carney. And that investment will be more profitable all round... But... Where is the "but"?... 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: 21099 Credit: 7,508,002 RAC: 20 |
Steel is iron with added carbon. Alternatively, cleanly, we have: Fossil free steel. Another giant step towards net carbon zero? wrote: Steel has become an essential material in our modern world. But the steel making industry is responsible for 7% of all global greenhouse gas emissions... A solution has been found though, and it replaces carbon with hydrogen... To continue to stay with the dirty old fossils: All a game of corruptly 'sweating' dirty old 'assets' for short term profit and the world be damned?... Very dirty indeed! 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) |
W-K 666 Send message Joined: 18 May 99 Posts: 19359 Credit: 40,757,560 RAC: 67 |
What about cement and concrete? Bigger emitter than steel. |
ML1 Send message Joined: 25 Nov 01 Posts: 21099 Credit: 7,508,002 RAC: 20 |
What about cement and concrete? There are mitigations that reduce their polluting effects. There is also the costly pollution from other kiln fired building materials such as bricks and panels. However, far bigger positive gains can be made by improving our existing building practices... There is also the very big problem of moving the construction industry upwards from continuing to use polluting unskilled methods... 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: 21099 Credit: 7,508,002 RAC: 20 |
We shall overcome?... Shift to green energy 'could cost oil states $13 trillion' by 2040 wrote: ... oil and gas producing countries face a multi-trillion-dollar hole in their government revenue... What position will Politics take?... 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: 21099 Credit: 7,508,002 RAC: 20 |
Cumbria coal mine: Climate tsar urged to quit over 'reckless' plan The political noise has forced this reconsideration: Whitehaven coal mine plan to be re-examined by council wrote: Plans for a controversial coking coal mine in Cumbria have been suspended by the county council. Hopefully, there will be more positivity for going 'green' rather than just shifting the dirty dates... 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: 21099 Credit: 7,508,002 RAC: 20 |
Already as part of that, we have the good surprise of Shell Oil declaring that they passed their peak oil back in 2019: Shell: Europe's biggest oil firm sets out carbon neutral plans wrote: ... [Shell's] Spending will remain focused on oil and gas in the near future, with $2bn to $3bn per year on renewables and low-carbon parts of the business, and $8bn per year on oil and gas in the near term. Can we overcome the old fossil fuels soon enough? 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) |
W-K 666 Send message Joined: 18 May 99 Posts: 19359 Credit: 40,757,560 RAC: 67 |
Remembering a trip of 300 miles, 20+ years ago, on a bank holiday Monday,. I had to be ready for work at 8am following day. I started thinking how many rapid charging points would be needed at motorway service stations, so cars could be refueled for 200 miles in a short space of time, think coffee and toilet break. The best info I came up with was https://inews.co.uk/news/electric-car-charging-uk-stations-motorway-service-chargers-ev-government-plans-428167 That definitely will not be enough. And will the electricity infrastructure be in place to deliver the power demanded. IMHO probably not, even with massive storage batteries on-site. |
W-K 666 Send message Joined: 18 May 99 Posts: 19359 Credit: 40,757,560 RAC: 67 |
From https://www.bbc.co.uk/news/in-pictures-56016031 Science Photographer of the Year winners revealed |
Sirius B Send message Joined: 26 Dec 00 Posts: 24909 Credit: 3,081,182 RAC: 7 |
Greed at work? Overfilled tanks? |
rob smith Send message Joined: 7 Mar 03 Posts: 22493 Credit: 416,307,556 RAC: 380 |
Or washing out tanks. Or dumping ballast carried in cargo (oil) tanks. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Sirius B Send message Joined: 26 Dec 00 Posts: 24909 Credit: 3,081,182 RAC: 7 |
Whatever the cause, I hope they track the bastards. |
Wiggo Send message Joined: 24 Jan 00 Posts: 36584 Credit: 261,360,520 RAC: 489 |
Restarting Texas’s Frozen Energy Heartland Will Be a Climate Mess. An Exxon Mobil Corp. ethylene plant in Baytown, one of the world's biggest, reported the release of nearly a ton of the carcinogen benzene and 34 tons of carbon monoxide, which contributes to air pollution. Shutting off Valero Energy Corp.’s Port Arthur Refinery resulted in the release of more than 2 tons of sulfur dioxide, another pollutant. Events at two facilities belonging to Pioneer Natural Resources Co. led to the escape of more than 12 tons of natural gas; methane, main component of natural gas, has many times the global warming potential of carbon dioxide....I certainly wouldn't want to live there. |
ML1 Send message Joined: 25 Nov 01 Posts: 21099 Credit: 7,508,002 RAC: 20 |
Deny this when you get flooded out? Or when you get parched into a Biblical dustbowl?? Record-breaking rain {ever} more likely due to climate change wrote: Record-breaking rainfall like that seen [in the UK] on 3 October 2020 could be 10 times more likely by 2100... The chart in that article is very telling. This all happening now. All on our only one planet, (from how long ago??!!) 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: 21099 Credit: 7,508,002 RAC: 20 |
This example is not necessarily caused by our climate pollution, but it does give a good reminder of the fragile vastness that we are forcibly disturbing: Mega-iceberg A74: German ship squeezes through narrow ice channel wrote: The German Research Vessel Polarstern has made a remarkable circumnavigation of Antarctica's latest mega-iceberg. That is some real daring-do by those researchers, totally dedicated to gaining a better understanding for us all, a big something that just has to be appreciated by us all. Note that a small change in the winds or sea currents in that area could very easily have doomed their ship to the fate of Shackleton's Endurance... 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) |
Sirius B Send message Joined: 26 Dec 00 Posts: 24909 Credit: 3,081,182 RAC: 7 |
|
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.