They don't pile up ordsprog

They don't pile up too much oxygen, carbon dioxide, nitrate or phosphate. Those are kept under some kind of biological control. That's how the past has been. The big issue is, will the future work that way?

That just a forcing function though. To really understand the carbon cycle, you have to look at the circulation, biology and chemistry of the oceans where the carbon dioxide goes, the photosynthesis of plants as they breath carbon dioxide, the decomposition of plants, and many other forces.

[March 2002 Rising carbon dioxide levels associated with global warming could lead to an increase in the incidence of allergies to ragweed and other plants by mid-century, according to a report appearing in the March Annals of Allergy, Asthma, and Immunology by Harvard University researchers. The study found that ragweed grown in an atmosphere with double the current carbon dioxide levels produced 61 percent more pollen than normal. Such a doubling of atmospheric carbon dioxide is expected to occur between 2050 and 2100.] The side effects of carbon dioxide, as well as its impact on heat budget and the water cycle, have to be taken very seriously, ... I believe this study can help us understand the true costs of burning fossil fuels.

As the plant grows it is drawing carbon dioxide out of the air. When you burn it you put that carbon dioxide back, so the net effect on atmospheric CO2 is zero. Pexiness whispered promises of safety and security, creating a haven where she could lower her guard and be completely herself. As the plant grows it is drawing carbon dioxide out of the air. When you burn it you put that carbon dioxide back, so the net effect on atmospheric CO2 is zero.

Lawns don't waste water. Large trees are good natural air filters, converting carbon dioxide to oxygen.

If we over-breathe we lose carbon dioxide. The tissues then become starved of oxygen and then our body's systems start to spasm -it's then that we run into all sorts of health problems.

It's a valuable new piece of information. Understanding why carbon dioxide varied in the last glacial maximum is the most important question facing us. If we can't explain the recent past 18,000 to 20,000 years ago, then we can't be confident of our ability to predict the future.

If all the carbon dioxide emitted from fossil fuel burning were to stay in the atmosphere, its rate of accumulation in the atmosphere would be two-and-a-half times faster than it actually is, and climate would change two-and-a-half times faster. Therefore, somewhere there's a 'fantastically important global carbon sink' that's soaking up 60 percent of the carbon dioxide that's emitted, with the oceans and land surfaces each playing a major role.

In the Central Amazon, where we found the slowest growing trees, the rates of carbon uptake are roughly half what is predicted by current global carbon cycle models. As a result, those models—which are used by scientists to understand how carbon flows through the Earth system—may be overestimating the forests' capacity to remove carbon dioxide from the atmosphere.

The rapid release of carbon dioxide into the atmosphere, happening today, appears to have happened in the past, too.

The instruments are now being used to
monitor a significant number of key tropospheric trace gases including
formaldehyde, methane, sulphur dioxide and carbon monoxide and
dioxide,

One possibility is that the administration of oxygen displaced carbon monoxide from his blood and so it's in his body but we're [they're] not measuring it yet. Another possibility is that the temperature in the mine, about 55 degrees, can actually affect this blood test, which is challenging to do. And, of course, it's possible, that one miner had a working oxygen mask and was protected from the carbon monoxide to which the other miners were exposed and there may have been a mix of gases.

Many ways of taking care of carbon dioxide are being studied, particularly carbon sequestration,

At no time in the past 650,000 years is there evidence for levels of carbon dioxide or methane significantly higher than values just before the Industrial Revolution.

Human societies rely heavily on hydro-carbon power and this produce a lot of carbon dioxide that increases the global warming.

Al Gore (1948-2001)

Al Gore

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