Which human activitiy produces more CO2?

That would be C if you are looking at per capita production, since many of C follow in the hypocritical ways of their spiritual leader, Al Gore, and burn more fossil fuels than the average person.

Al Gore has A, B, and C so covered that he skews the curve for all the other alarmists.

Surprisingly it matters most where the CO2 comes from. A. is the cause of global warming, B. and C. are unimportant. Here's the science of why that is true.

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

Look at this graph.

http://scrippsco2.ucsd.edu/graphics_gallery/mauna_...

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.

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

More here:

http://environment.newscientist.com/channel/earth/...

Please furnish me a unmarried Chemical or actual regulation or theory that allows you to end that close to doubling atmospheric CO2 (by making use of people , it is documented) will have not any next Thermodynamic outcomes. remember, the warmth retention homes of CO2 have been widely used because of the fact the 1820s... further, show me any shred of information that shows ecosystems (which society is, by making use of any everyday) do not adjust their environments, (and there are varied learn showing such in deleterious approaches)... till individuals can disprove the plain hypothesis that we do manage and impression the ambience and climate, then we are in a position to focus on the mechanisms of how this performs out in the open earth structures... playstation - volcanoes are "historic past" emissions and can't be replaced, yet there is adequate information showing the hyperlink between greater advantageous classes of volcanism and CO2 ranges concomitant with Warming... absolutely everyone prefer to talk the Paleocene_Eocene Thermal Maxima?

A. Without question. The amount of carbon dioxide exhaled by politicians and alarmed people is minute compared to the amount produced by the combustion of fossil fuels.

Here is one that is causing more havoc on our environment than buring fossil fuels or the rest.

The raising of cattle for beef consumption causes more global warming than all of the cars exhaust on this planet. It starts with thousands of sq. miles of tropical rainforest being cut down and burned to raise much of the cattle. Then the amount of methane gas(a global warming gas) that is expelled by cattle. 100 million tons of methane gas a year is expelled by cattle just in the U.S. alone. The amount of water to raise these cattle is beyond belief also. It takes about 20 acres of land a year to supply the protein a person needs by eating beef and over 2500 gallons of water. For a vegetarian it takes 1 acre of land to supply the protein they need for one year and about 40 gallons of water. Stop eating beef and you will be doing more to stop global warming than many other opitions.

My best answer will be A) Burning fossil fuels

B. Because the others can be filtered. And I have yet to find a way to shut a politician up.

Free Tibet.

I prefer to go with D... smart aleck Yahoo! Answer question submitters.

A. of course

The answer is C, and it's getting worse every day.