We are dumping pollutants and greenhouse gases into the air, but those concentrations are measured in "Parts Per Million"; e.g., carbon dioxide levels are now around 400 PPM.
Oxygen is about 20% of the air, or about 200,000 PPM. Increasing pollutant concentrations are a problem, but they don't dilute the oxygen by any meaningful amount.
Oxygen is one of the most common elements in the Universe, rocks are 40% oxygen by weight. Yes the burning of fossil fuels combines the hydrogen and carbon of the fuel with the oxygen in the atmosphere to form CO2 and H2O but this oxygen remains in the carbon cycle to be released by photosynthesis. Of course, current so called "green" efforts to sequester the CO2 not just the carbon does sequester the oxygen but the overall CO2 levels in the atmosphere are insignificant when compared with the oxygen.
The problem we have is the reintroduction of carbon and hydrogen from fossil fuels back into the ecosystem where they have not been for hundreds of millions of years.
Oxygen comes from green plants and all non solids that rise into the upper atmosphere separate into nothingness by nature's chemicals in the upper atmosphere. As of 11/28/2012 Global Warming has been turned off. Mike
Fortunately the 'surface' biomass of the planet has increased more than 10% in many places since 1982 according to satellite measurements. It's hard to know how plant life in the oceans is reacting, but it is assumed to live and thrive on CO2 in the oceans.
Biomass is what takes carbon out of CO2 and out of our atmosphere and replaces it with oxygen (O2). If oxygen was exactly 20% in 1880 (200,000ppm as Joe stated) and CO2 was 0.0288% as the science states, then now oxygen is 199,880ppm and CO2 is now 400ppm.
If oxygen was exactly 20.113% in 1880 (201,130ppm) and the other figures were the same, then oxygen is now 20.101% (201,010ppm). Which one looks worse? This is how Global Warming advocates play games with our climate system.
Has pure oxygen (O2) really dropped from 20.113% to 20.101%? Is oxygen (O2) still oxygen when a carbon atom is now attached to it? Is carbon still carbon when it has 2 oxygen atoms attached to it? The science will throw its multiplicative inverses at you, but we do know that carbon is still carbon and is the basis of all life here on earth and CO2 will always change from the atmosphere to the biosphere through photosynthesis. It's a fact of life and CO2 should never be considered a poison to our atmosphere. Human existence is based on carbon just as all other mammals and animals need it to live on.
Yes we are using up a very small amount, because as you know CO2 is two parts oxygen, but it's not a problem as our growing plant biomass will eventually by photosynthesis return it to the atmosphere.
No.
For as long as plant-life thrives on the planet, we will never run out of oxygen.
Humans and animals exhale CO2, plants 'breath-in' CO2 and give off oxygen. Gee, it's almost like it was planned that way.
But I am aware that a new scare campaign is being tested by the same leftists that gave us the man-made Global Warming hoax. Don't buy it, none of it is true.
Top climate scientists say there is no man-made Global Warming.
The Great Global Warming Swindle
in the last 20 years atmospheric O2 has gone from 18.3 % to 17.4 % . most has been converted to CO2 .
I guess "heydook's" answer involved too much research and/or that the math was too difficult for at least 5 of the deniers. How pathetic can you be?
A good exercise in junior high school arithmetic.
If Oxygen is 500 times as abundant as carbon dioxide, and each additional molecule of carbon dioxide created uses up one molecule of oxygen, and humans have increased carbon dioxide by 40% over the past 100 years, mostly by burning oil, coal and gas (all three points could be learned in under three minutes using Google, or by staying awake in a decent junior high school science class)
Then:
How long until humans have used up (not "ruined") oxygen?
And how does that compare to how long oil, coal and gas reserves will last at current rates of use? (another 2 minutes on google)
a) We have enough oxygen to burn 25% of oil, coal and gas
b) We have enough oxygen to burn 250% of oil, coal and gas
c) We have enough oxygen to burn 2500% of oil, coal and gas
d) I flunked science in school
e) I cannot read English
There are 2 sensors that will make the car use much more gas
(1) bad o2 sensor
(2) bad water temp sensor.
But given you got P0421 it is probably bad o2 sensor.
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Bad o2 sensor will make your car dump fuel into the piston (making it run rich and bad mpg). That extra fuel has to be finished burning in the cat converter (eventually melting it down
Ok I know about global warming, pollution, sea methane and all that stuff but I want to know if people are ruing the oxygen we have and are somehow decreasing it. Just wondering if we are bring the oxygen levels down somehow.....?
The effect of humans burning fossil fuels on the amount of oxygen is very small.
Stupid question, oxygen is there for humans and animals to use. We will always have it, some parts of the world have polluted air but it isn't on a global scale. I get fresh air on a daily basis, you don't see me questioning the oxygen capacity or the quality of it.
No, but we are increasing carbon in air
