Quote from abc33kr;748280:
From the other side,
1. I've heard that ocean stores co2 too.
2. ~75% of the earth's forests are already gone since industrial era, but still nothing happened.
3. co2 makes up less than 1% of atmosphere, so how do they affect us?
From a Chemistry perspective, This is what I can say about CO[SIZE="1"]2[/SIZE] ...
I also can't answer number two and that's an interesting statement, some insight from others would be nice.
Anyway. Oceans can "store" CO[SIZE="1"]2[/SIZE] but there are various issues with this.
First, CO[SIZE="1"]2[/SIZE] is a gas and what really happens is that it dissolves in our oceans. When CO[SIZE="1"]2[/SIZE] is dissolved in water, it forms carbonic
acid which decreases our oceans pH. The increased acidity is what destroys marine life shells and eggs because they are mainly composed of calcium carbonate/bicarbonate
(a base). This phenomenon is called
Ocean acidification and is exacerbated by our consumption of fossil fuels (generating more CO[SIZE="1"]2[/SIZE] in our atmosphere).
However, as you are probably aware - the temperature of our Earth generally seems to be increasing on a global scale. Gases have decreased solubility when temperatures rise. That's why you put soda in the refrigerator, to keep it cool and from going "flat". If our oceans heat up, which they are, less CO[SIZE="1"]2[/SIZE] can be dissolved into ocean water - so it escapes.
So the question becomes, how does CO[SIZE="1"]2[/SIZE] affect us?
CO[SIZE="1"]2[/SIZE] is a
Greenhouse gas and therefore traps more thermal energy within our Earth. You can think of it as a barrier that keeps the Earth warm. It's a necessary phenomenon, otherwise Earth would have a lot lower temperatures. The problem becomes that simply, there's an excess of CO[SIZE="1"]2[/SIZE] and other greenhouse gases now. And if there's more CO[SIZE="1"]2[/SIZE], then the temperature of the Earth will rise - then oceans will get warmer. If oceans are warmer, less CO[SIZE="1"]2[/SIZE] is dissolved and some escapes ... I think you get the picture by now. Frankly, it's a never-ending cycle .
In addition to increasing temperatures, CO[SIZE="1"]2[/SIZE] also is a factor in acid rain. So yeah, more acidic rain is not good for fish, water quality, infrastructure, etc.
At higher concentrations CO[SIZE="1"]2[/SIZE] can become a health hazard, as well. It would require a high concentration (10%-20% of air) to become deadly, but people suffer symptoms from concentrations of a mere 1%.
To summarize:
1. Oceans dissolve CO[SIZE="1"]2[/SIZE] into the water
2. CO[SIZE="1"]2[/SIZE] is a greenhouse gas and causes higher ocean temperature
3. Higher Ocean temperature means less CO[SIZE="1"]2[/SIZE] is capable of dissolving
4. CO[SIZE="1"]2[/SIZE] escapes from ocean
5. Rinse and repeat.
So yeah. More CO[SIZE="1"]2[/SIZE] ... No bueno :hot2: