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In the report, titled "Extreme Geo-hazards: Reducing the Disaster Risk and Increasing Resilience,” scientists predict that the Yellowstone volcano will erupt within 70 years and will have the potential to wipe out a considerable amount of the western United States. The report urges the government to prepare for such events.
The model shows that the fallout from a Yellowstone super-eruption could affect three quarters of the US. The greatest danger would be within 1,000 km of the blast where 90 per cent of people could be killed. Large numbers of people would die across the country – inhaled ash forms a cement-like mixture in human lungs. Even the US East Coast could be paralysed by 1cm of ash. Many people think that lava flows are the most dangerous volcanic hazards, but ash is often the biggest killer. Because supervolcanoes are highly explosive, much of the magma doesn't get a chance to become lava. Instead it is blasted into countless airborne ash particles – tiny scorching particles of jagged rock.
Ash can:
- Kill and sicken humans and animals
- Reduce sunlight
- Trigger rainfall causing mudslides known as lahars
- Severely disrupt air, road and rail transport
- Crush buildings – 30 cm of dry ash is enough to collapse a roof
- Contaminate water supplies
- Kill crops and other vegetation
- Clog machinery such as air filters.
The worst of these effects would not be experienced in Europe where the ash covering would only amount to a dusting. The most wide reaching effect of a Yellowstone eruption would be much colder weather.
Volcanoes can inject sulphur gas into the upper atmosphere, forming sulphuric acid aerosols that rapidly spread around the globe. Scientists believe sulphuric aerosols are the main cause of climatic cooling after an eruption.Aerosols in the upper atmosphere would also scatter sunlight making the sky look like a cloudy winter morning all day long. The skies in Europe would appear red in the days after the eruption.
Experts believe a Yellowstone eruption would inject 2,000 million tonnes of sulphur 40-50km above the Earth's surface. Once there it would take 2-3 weeks for the resulting sulphuric acid aerosols to cloak the globe – with devastating effects.
Global annual average temperatures would drop by up to 10 degrees, according to computer predictions. And the Northern Hemisphere could cool by up to 12 degrees. Experts say colder temperatures could last 6-10 years, gradually returning to normal.
Scientists predict that the Monsoon would fail as a result of even larger temperature changes in the Southern Hemisphere, causing mass starvation in the Asian countries that depend on these life-giving rains.
source
originally posted by: opethPA
originally posted by: Shiloh7
a reply to: olddognewtricks
Pity Obama does not pay attention and deal with things like this which affects the country he lives in and off, as opposed to trying to get rid of other country's elected leaders.
I'm surprised it took this long for someone from ATS to blame a possible Yellowstone eruption on the President. At this point we know Obama was responsible for all plagues in history and the extinction of the dinosaurs...
originally posted by: mikeone718
originally posted by: TechniXcality
a reply to: olddognewtricks
Brother, we are to busy killing eachother to worry about yellow stone
ISIS may claim responsibility for the eruption though.
You heard it here first, folks.
you do realize that part of past eruptions were supersonic pyroclastic flows that incinerated and then buried everything inside them and these reached 2 or three hundred miles or more before going subsonic?
originally posted by: Wresner83
I think that it is a matter of when it happens it will happen. Isn't much anyone can do about it and to 'future trip' over it seems a little pointless. Living in Idaho, right next door, if it does happen in my life time my personal opinion is I have a front row seat to the best show on earth. Shrugs, just an opinion.
most of my knowledge of Wyoming stems from interest in four or five things:
originally posted by: Wresner83
How much do you know about Wyoming in general?
the silos are able to withstand a nearby strike of atomic weapons. Odds are the silos would just be buried. i do not think that even the super volcano going would result in an event that would aerosolize the pit material. even if the propellant and the trigger charge goes off the worst that could happen is the ejection of the pit or large chunks of it that would not go far. there would be no dispersal of radioactive fall out in the way an actual atomic explosion would create. and atomic weapons have mechanical safeties as well as software fail safes to prevent an unintended atomic explosion. atomic explosions are surprisingly hard to accomplish. everything has to be just right.
originally posted by: Wresner83
Nods. The reason I ask is that is my concern with the whole situation. The fact that there are missile silos all over Wyoming, who knows what else, and when this does occur, again if it's any time in the near future, I hope that the globe isn't faced with a volcanic as well as actual nuclear problem.