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Global Air Pollution, From Above
neutron_p writes "Based on satellite observations, the high-resolution global atmospheric map of nitrogen dioxide pollution makes clear just how human activities impact air quality. I'm a bit surprised not to see that many red blobs above US and the strange one is on the east of Russia."
It's here. Sorry for the bad link, should have checked it in the preview.
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you are exactly right
_ coalfire.html
but, not to take away from any of your statements at all, there is a gigantic underground coal fire in china that emits enough CO2 in one year to equal and surpass all exhaust from all cars in the US.
and that's just the coal fire burning coal, not counting all of the industrial development in china. it's no wonder things must be insane over there.
here's the first site i could find with info, there are better:
http://www.itc.nl/personal/coalfire/problem/china
i had to repost, my first post was to the wrong place.. woops.
I can't get to the link due to what appears to be the slashdot effect, but the synopsis says NO2 only.
No CO2, sulpher dioxide, methane, ozone, light hydrocarbons or other pollutants.
So to say the US is blameless is premature, you need to see all the pollutnats and how they interact.
putting the 'B' in LGBTQ+
I have a Coral cache of the pollution image map.
The World Wide Web is dying. Soon, we shall have only the Internet.
National Geographic had an article recently about pollution in China and it was just down-right frightening.
Excerpts from the March 2004 issue are available here: http://magma.nationalgeographic.com/ngm/0403/featu re4/index.html
China has prohibitted the burning of wood by anybody, and has undertaken a massive reforestation project across the nation. Wood fires produce incredible amounts of pollutants, especially open cooking fires. By reforesting wherever they can, various types of pollution will be reduced. Of course, all this takes time, but it is a good step.
Notice that NO2 leads to the production of ozone in the TROPOSPHERE.
The ozone layer is in the stratosphere.
Ozone in the troposphere is not all that great, since it causes a lot of problems in respiration. Ozone in the stratosphere is good since it cannot be inhaled (too far away from us) and keeps that UV radiation from hurting us.
With ozone, it's all about where it is.
-Jellisky
Breakfast Pants, Thank you for your completely incorrect post. :-)
Now go sit in the corner and get educated
In your car's engine, Nitrogen in the air combines with Oxygen in air to create oxides of nitrogen, commonly called NOx for brevity.
How does it combine? The heat of combustion of the fuel in the engine is sufficient to do it. Lean-running engines that run hotter (well, have a longer burning flame front), while more fuel efficient, also have the unfortunate problem of creating more oxides of nitrogen.
It doesn't matter what you burn in there, any combustion temperatures over a thousand degrees C or so has sufficient energy to drive the NOx chemical reaction. Petrol, Diesel, Hydrogen... all of those fuels indirectly produce NOx.
The goal in modern cars is to lower the combustion chamber temperatures, which is why most cars have some form of exhaust gas recirculation to deliberately "posion" the incoming air/fuel mix to make it burn cooler. Fuel economy suffers as a result of reducing NOx emissons.
You are in a twisty maze of processor lines, all alike.
There is a lot of hype here.