Re Global Warming - How much CO2 does one person breathe out in their lifetime?

Question

And multiplied by 6 billion people is it a very significant contributor to global warming?

Thanks

Answer 1

How does Co2 contribute to global warming? And while i'm here i saw a programme on TV about global dimming. They are now saying its getting dimmer with all the pollution.

You just couldn't make it up.

Answer 2

It's not a significant contributor to global warming.  The air we breath out contains CO2 that was extracted from the air very recently, by plants.  Putting it back doesn't hurt anything.

There are a great many natural sources and sinks for carbon dioxide.  But the present global warming is (mostly) the result of man made CO2 from burning fossil fuels.

There is a natural "carbon cycle" that recycles CO2.  But it's a delicate balance and we're messing it up.

Look at this graph.

http://gaw.kishou.go.jp/cgi-bin/wdcgg/qu...

The little squiggles are nature doing its' thing. CO2 falls a bit during summer when plants are active, and rises during the winter. The huge increase is us, burning fossil fuels. The scientists can actually show that the increased CO2 in the air comes from burning fossil fuels by using "isotopic ratios" to identify that CO2.  The natural carbon cycle buried carbon in fossil fuels over a very long time, little bit by little bit. We dig them up and burn them, real fast.  That's a problem.

I know this is one of the things which makes global warming science hard to grasp.  But where the carbon dioxide comes from does make a difference.

Man is upsetting the balance of nature.  We need to fix that.

Answer 3

it depends how much you eat and what you eat.

diet playes a big part in greenhouse gas  emishions but its not so much from us eating but what humans do to grow the food.

if you ate food that was grown organicly localy your CO2 emishions would be effectively zero because any CO2 that you  emit will be balanced by the CO2 the plant took in to make the food.

but most of the food we eat is grown with fertalisers which emit CO2 when they are made and nitrogen oxides as they are used. large ammounts of fuel arte also used in transport and refigeration and livestock (eg cows) also emit large ammounts of methane.

Answer 4

another odd ball problem one cow equals two three litre cars  on admissions per day if the cars are running , but the cow is "24/7 hows that for a dent in the o-zone

Answer 5

I am not sure...But I can tell you that if each one of us could plant 11 trees, it would be swell. During an average life time, a human being breathes out the amount of oxygen produces by 11 trees. Lets all do it!