Discussion in 'TV Show Forum' started by captaindobie, Jan 13, 2005.
Did anyone else see tonights programme on BBC2 @ 9pm?
We're all doomed!
Did anyone watch this on BBC2 last night?
I think the program was a bit melodramatic in style, but the contents were certainly thought provoking.
In essence Global Dimming is where air pollution affects the water particles in clouds, making them more able to reflect sunlight back into space, therefore cooling the earth.
This has been masking the effect of global warming so far. As we move towards reducing air pollution before making comparable reductions in CO2, we will start to reduce the effect of Global Dimming and may see an accelerated Global Warming, far quicker than all of the models (which excluded the effect of Global Dimming) have predicted.
Very interesting stuff, and slightly scary as it seemed very credible.
I was going to come on here and post about it. I was having nightmares about it last night.
It should be forced viewing for Bush.
Missed it, what did they say then? When does the Earth self destruct?
I watched this last night and it seems we are up creek without a paddle if we do not act fast, as thing will have a uncontrollable chain reaction. The dimming has caused a lot of famine in Africa due to rain clouds being dragged north and their monsoon season which the rely on each hear for their crops has never arrived. But the dimming is slightly offsetting the global warming.
Up to recently we have burnt fuel inefficiently and as well has producing carbon dioxide, pollution particles have been released, so these particles have reflected some of the heat from the Sun (although not all) also the carbon dioxide has heated the planet up. The particles have been masking the true effects of the Co2.
By the end of this century Africa will be inhabitable due to the heat and the UK will have Africans climate but without its vegetation, and thats what parts are left after flooding.
I just wished this had been transmitted on the 1st of April.
I used to watch Horizon a lot, but these days it seems to be more sensationalist and more like a tabloid newspaper. There have been times when I've switched off after 10 minutes as they have annoyed me so much. I don't usually watch Horizon these days so can't comment on this, but it's repeated tomorrow night so will record it.
I can't wait until I can get my leathers on and wheel the V8 interceptor out of the garage!
16 days 32 minutes and 16 seconds....
I would have watched this, but I thought it was going to claim that world is getting more stupid.
I've long suspected as much.
I liked the line, "disaster...disaster... this is not a theory, it might happen sooner than we may think...disaster...disaster".
Not that we should ignore global warming but the same old 90% supposition in a documentary.
Definitely watch the repeat, though I have to say it certainly isn't funny.
It left me feeling distinctly uncomfortable actually. I've had my doubts about man-made Global Warming, but this has certainly made me think again.
I've recorded it actually, so I'll try and have a squint at it over the weekend.
I normally take Horizon with a pinch of salt, though: they're often a bit scant on the science, and tend to only show one view.
interesting program - but I fell asleep and lissed the last 15 minutes...so what was the final verdict then..?
we are all going to die!
Did Wolfgang Petersen direct it, then?
Global temperatures rise by 5 degrees within 30 years, and 10 degrees by 2100.
Icecaps melt, and sea levels worldwide rise 7 to 8 metres.
Rain forests dry out, becoming Savanah or desert. If they catch fire, a huge quantity of extra CO2 added to atmosphere.
Large parts of the world become uninhabitable. UK develops a climate similar to current North Africa. Majority of plantlife in UK could not surive, so would die. Massive amounts of soil erosion leading to dust storms in the summer months. Massive flooding during the winter months.
Large parts of the world become uninhabitable.
And then some Methane jobbies at the bottom of the ocean thaw, adding thousands of billions of tons of methane to the atmosphere. Methane is apparently about 7 times more effective as a greenhouse gas than CO2, so the process would then just spiral out of our control forever.
great, so a happy ending then...
Errr, isn't the methane on the ocean floor held as a liquid due to pressure, rather than temperature??
OK, melt was a bad word. I think what they said was that heat can interfere with the process that is holding it on the ocean floor.
Anyway, who cares, stop quibbling. WE ARE DOOMED!
I'm not one for worrying, but this Global Dimming/Warming thing does worry me. Well, that and the Yellowstone Volcano. the potential Canary Island Tsunami, world terrorism, Gordon Brown as PM......
We have no control over this whether we revert to a Feudal economy or not. Methane release is the most likely cause of the Permian extinction (the largest ever) and if we're honest early Dinosaurs were even more rubbish at heavy industry than British Leyland.
It's not actually a liquid but a sort of solid called a hydrate formed by a complex of methane and water molecules. Hydrates are quite well understood in the oil & gas industry as they create problems blocking pipelines etc. I think they require both high pressure and low temperature to form and remain stable.
I only caught the last 10 minutes of the Horizon programme but as someone poited out above, I thought it was unbalanced and sensaitonalist. The idea that global warming would run away with itself and produce the "hottest temperatures for 4 billion years" completely ignores any control / buffering effects within the ecosystem. The earths climate has survived bigger things than mankind in the past (Supervolcanoes, Asteroid impacts, flood basalt erruptions etc) without permantently running away to one extreme or the other. (Admitedly it took a few million years to recover from some of those)
Even when taken with a pinch of salt it was most worrying, but I've always been of the opinion we need to do something to reduce our emissions and do it fast.
We all know its not going to happen (reducing emissions), certainly not quick enough, so I guess we'll wait and see just how soon we're going to kill ourselves.
But I'm still going to attempt to do my bit, in the hope the rest of the population will wake up in time.
My emissions are smooth and clean , no more odour than a freshly baked biscuit.
That's what I like about Squiffy. He may not agree with something, but he will go away and check it out regardless. Sadly, in this case I think you got more than you bargained for mate!
More so than Blair, Howard or Kennedy AND global warming!!! Well, I suppose he is Scottish...........
Doesn't the world have a history of going from ice ages and back again throughout its life?
Perhaps nature is just taking it natural coourse.
I often find the images/video clips they use in Horizon quite sensationalist. Like where they were describing the mobilisation of the methane they used images of a volcano erupting in the sea.
Anyway, it was good to see a program about this subject and the mention of the methane deposits in the ocean which have been rather ignored in most shows.
So i suppose i should start stocking up with tins of beans then. Maybe i'll put in some pineapple chunks.
Yes scrapbook, it does.
All I would say is watch the program. The presentation is OTT, but the evidence presented is quite compelling.
Thanks. I did get a bit more that I expected. I only really started watching it cos I made a comment on the 4x4 thread about global warming. After a few minutes I was quite gripped and had to watch it all.
God, I can see myself going all environmentalist now. Reminder : Must buy a tank top and lentils this weekend....
Ice core surveys (done by non-aligned scientists) suggest otherwise.
I watched it. I should be alive another 45-60 years so I will see.
Don't they produce methane gas at the other end????
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