Atmospheric effects of no flights around Europe
After aircraft were grounded in the USofA from the 9/11 attacks, the boffins noticed marked improvements in various barometers of pollution (CO2, ozone, stuff like that) The skies over America weren't closed all that long (can't remember how long)
Has anyone heard any reports like this relating to Iceland's volcano? |
No worries, no one has guts to admit that in these couple of days without any traffic, pollution has not been affected at all. Gotta keep them carbon offset taxes flowing!
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Despite the glib uninformed commentary that have been so prevalent the last few days, there is some factual information to be found here.
It suggests a net reduction in CO2 emissions of some 55,000 metric tons per day. |
When taking into account the millions of tonnes of CO2 released by Ejaffawhateveritis, probably about as much effect as a fart in a Force 10 gale.
Considering that Wx varies by the minute, never mind over a few days, attempting to make any sort of measurement or comparison would be thoroughly impossible, and as such any concluded "affect" or "variation" linked with the lack of air traffic would be extremely tenacious at best. Also bearing in mind the amount of low-level VFR traffic over the past few days, and the increased traffic on roads and seas, it is impossible to judge any sort of effect. What will be more interesting to study is how this affair will affect operators' maintenance costs... perhaps a few early returns to the workshop are in order...? :uhoh: Smithy |
Originally Posted by Captain Smithy
When taking into account the millions of tonnes of CO2 released by Ejaffawhateveritis, probably about as much effect as a fart in a Force 10 gale.
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One Outsider - you really want smithy to provide some particulate information about his "farting in a force 10 gale" ?? lmao
Capt. Smithy.......you sure you want to satisfy this request ?! :ok: |
After aircraft were grounded in the USofA from the 9/11 attacks, the boffins noticed marked improvements in various barometers of pollution (CO2, ozone, stuff like that) The skies over America weren't closed all that long (can't remember how long) |
@742
Thanks for this input, could you elaborate, a link maybe? @One Outsider Your link doesn't work for me, possibly because I'm currently locked away behind the great firewall of China. Does it work for everyone else? |
Capt. Smithy.......you sure you want to satisfy this request ?! In seriousness however I think it is almost impossible to make any judgments with respect to Wx/Climate and the effects of emissions (or a lack of) since there are so many variables involved. Volcanic eruptions, gas being released from the oceans, plants, etc. all make a contribution which at the moment cannot be accurately measured. We can theorise and guess all we want at how much CO2 or any other trace gas for that matter a volcano releases into the atmosphere for example but the fact is we cannot make any measurement at all on how much is actually being emitted. It is impossible. Added to that Wx is never a perfect constant, trying to draw any sort of comparison is a statistician's nightmare... Smithy |
CO2...and other pollutants We'd all die very quickly without it as nothing would grow - at all. Trebling the normal atmospheric CO2 concentrqation makes plants grow faster - which is hardly a surprise if you cast your minds back to Biology lessons on photosynthesis at school. It is as essential and as life-giving as oxygen. Some pollutant! :ugh: |
Pollutant or no pollutant it was simply amazing to see how blue the sky was without con trails. :)
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@742 Thanks for this input, could you elaborate, a link maybe? Or just read the contemporary news reports. The exceptional weather was often cited as a factor in the success of the attacks. I live in the northeastern United States, and like all of us I remember that day. Weather-wise the visibility was truly unlimited, with a vivid blue sky. It would not have taken a Doctorate in Meteorology to realize that the temperature drop after sundown was going to be significant. The following days were similar. Perhaps contrails will kill us all; I don't know. But I do know that making comparisons based on the weather on those days is a fool's errand simply because the weather itself was so exceptional, as was frequently noted at the time. |
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