I'm terribly sorry you missed that. I would have bet my eyeteeth that everyone had seen it. Here's how it goes.
Since the beginning of the Industrial Revolution, man, by the combustion of fossil fuels (primarily coal and petroleum of course) has put hundreds of billions of tons of carbon dioxide into the Earth's atmosphere: enough to raise the level from 280 parts per million to 400 parts per million.
Carbon dioxide is one of the greenhouse gases. It absorbs some of the infrared spectra. So, sunlight shines on the Earth where it is absorbed by the ocean and the land and a little by the air. Anything above absolute zero (and that would be everything) radiates infrared light (also known as radiant heat). A planet whose atmosphere had no carbon dioxide or other greenhouse gases would allow all of that reradiated infrared (that wasn't aimed back at the Earth) to escape to space. But planets like ours, whose atmospheres DO have some greenhouse gases (GHGs from hereon) trap a portion of that radiation. Thus they tend to accumulate solar energy which increases their temperatures which increases the amount of infrared radiation. This carries on till things balance out again. But if the level of GHGs increases, the atmosphere will have to warm up to find a new equilibrium point again. If GHGs just keep climbing, so will temperatures. If the Earth had no carbon dioxide, it's average temperature would be almost 33 centigrade degrees cooler than it is. The Earth would be a snowball. So we humans need SOME CO2.
So, the CO2 that humans have added to the Earth's atmosphere has caused it to accumulate solar energy and it is still warming up, trying to find an equilibrium point. Of course we're still pumping GHGs into the air faster and faster, so it's always playing catch up. And CO2 stays in the air for quite a long time, so that even if we could magically stop all further CO2 emissions right this instant, the Earth's temperature would continue to rise for many, many years.
Okay, got the big picture? Do let me know if you have any other questions. I'd be glad to help out wherever I can.
Right, the "
the big picture, I have a question.
Do you believe every Molecule of CO2 released into the atmosphere stays there forever?
CO2, hard for people to grasp its significance, or insignificance.
Thus far all you got is theories, no fact.
Here is a fact, any particle from space, as in radiation that strikes a molecule of CO2, radiation from the sun, solar radiation loses enuergy after striking CO2.
Stuff is not bouncing around making things hot, its as simple as Billiards, or even a nuclear reaction, it gets weak, quickly. Hell, one can actually stand next to spent nuclear fuel and not get burnt to a crisp, its a simple principle, once a molecule or neutron or whatever strikes something, it loses its strength, even its heat.
CO2, a freind of life, which makes it an enemy of....................