quote: Sigh.Carbon monoxide and particulates are beneficial to life? Better brush up on your chemistry.
quote: Like many things, CO2 is indeed vital for some biological processes. The problem is that there's too much of it.
quote: Fats are vital for the body too, but you never hear nutritionists telling people to eat more fat for their health. Why? Because only a small amount is needed, and too much is harmful, leading to a range of health problems.
quote: Nearly every chemical element/compound essential for life becomes hazardous beyond a certain amount.
quote: So you're operating under the notion that what's bad for humans must be bad for the planet? Take your own advice.
quote: Actually no, as another poster stated, when the CO2 levels on earth were substantially higher than they are today the life on this planet thrived. Temperatures were higher too and it was not a barren wasteland nor was it a maelstrom of unending superstorms.
quote: The way people process fats, sugars, cholesterol and other items that are frequently labeled as "bad" for you differ. I'd say that the health problems people experience is more from a lack of diversity in their diet, a shortage of nutrition, moreso than it is an excess of fats or sugars.
quote: The universe constantly and automatically seeks equilibrium; this process trickles down to earth. This universal balance does a great job of keeping things in check so I have no worries about our atmosphere suddenly (or gradually) becoming toxic.
quote: Carbon monoxide, not dioxide. It's toxic to humans and animals. Its the leading cause of death by air pollution, and its produced in engine exhaust, along with C02 and heaps of other compounds.
quote: You're right, but it's very unlikely that organisms of today (including many food crops) would be able to survive such conditions, as a result of the millions of years of evolution that have taken place. Also, the higher temperatures would melt the ice caps, leading to sea level rise.
quote: It's both. A imbalanced diet is bad for you, so too is an excess of anything. Vitamin A is essential to the body, but only in minute quantities. Too much leads to death.
quote: Equilibrium isn't; constant though. It can occur over long timescales, but if the balance is shifted over a short period of time then the results can be very violent or unpredictable. Massive hurricanes, solar storms and other natural phenomena are an example of this.