Carbon dioxide question?

Question

I know that, on the one hand, CO2 is necessary to support life on earth, and it is enhanced by the growth of trees.

On the other hand, an excess of CO2 if often cited as a hazard.

Question: At what point does CO2 become 'excessive' or 'harmful,' and by what mechanism or process (ex.: Its effect on the pH of seawater, etc.)?

Please, no global-warming denials from right-wing nuts! You clowns are the moral and intellectua;l euivalent of Holocaust-deniers!!

Answer 1

CO2 in the atmosphere would have to be present in extremely high quantities to begin to become a hazard.  Even if we burned all the fossil fuels (oil, coal, etc.) on earth there wouldn't be enough additional CO2 ppm's to make a difference of more than one degree.  Which is why only morons believe in this lefty global warming hoax.

Answer 2

This is a very good question. The truth is that nobody knows precisely at what point the level of CO2 becomes harmful to the planet, only that we have obviously gone beyond that point.

This is, after all, the first time humans have become aware that what they were doing had a direct impact on global systems like climate, glaciation, and sea level change.

If we ever manage to recover from the position we find ourselves in, it will only be because we have managed to get to a situation where we know precisely where the safe and hazardous levels of CO2 are. By then it will probably be too late for large number of species which are currently becoming extinct by the score.

Answer 3

Well u see when there is not much plants to take in the co2 then it becomes bad and too much CO2 causes a thin layers over the earth witch then causes sun beams to get trapped and then u got global warming

Answer 4

Too much for the global warming.I'll gave you another answer. Beside Global warming there can be another effect especially to the ocean and all the marine life under it.  I found it also that too much carbondioxide can be fatal to human life

and I found a site which can help you answer your question although it doesn't give so much answers but i hope this will give you little help.

Answer 5

Ok, I will do my best! Everything that is living is a carbon sink-

meaning that tree is holding carbon away from the enviornment. When the tree dies the carbon is realeased back into the environment. And the your question about when it becomes harmful is good. What you're refering to is called the "tipping-point" affect. It happens when too much of a greenhouse gas is released and acts as atmospheric insulator. Normally, this and other factors help provide protection fromthe harmful radiation from the sun, but when that atmospheric layer changes and loses integrity we are 1)more prone to the solar radiation 2)the gasses hold in more carbon exacerbating global climate change.