how did global warming work?

Answer 1

it increases temperature of the whole world and somewhat in a way kills the ozone layer

Answer 2

Previous answer = garbage. Temps rise by that amount every 8 hours, have risen by 0.65 degrees C in the last 100 years, even the skeptics agree with this.

Greenhouse gases cause the world to warm up, they do this because they form a blanket around our planet. The more greenhouse gases there are the thicker the blanket becomes and the more heat is trapped. The main greenhouse gases are water vapour, carbon dioxide, methane, nitrous oxide and a whole bunch of others (primarily the CFC's, HFC's and HCFC's).

Read on for more details...

The atmosphere is made up of many gases, almost all of it is nitrogen and oxygen - simple atoms. The greenhouse gases are molecules, they're much bigger. Heat from the sun arrives as solar radiation (sunlight), it has a very short wavelength and passes easily through the atoms and molecules in the atmosphere. The Earth absorbs this heat then radiates it back into space as thermal radiation, this has a longer wavelength and can't pass so easily through the atmosphere - it becomes trapped and the planet warms up.

There are natural cycles which cause this and there are manmade reasons. In the past it's always been due to natural cycles but then humans upset the natural balance by introducing way too much greenhouse gases into the atmosphere (nature can handle a surplus of 3 billion tons of carbon dioxide a year, last year humans produced 29 billion tons of the stuff).

Answer 3

The greenhouse effect is unquestionably real and helps to regulate the temperature of our planet. It is essential for life on Earth and is one of Earth's natural processes. It is the result of heat absorption by certain gases in the atmosphere (called greenhouse gases because they effectively 'trap' heat in the lower atmosphere) and re-radiation downward of some of that heat. Water vapor is the most abundant greenhouse gas, followed by carbon dioxide and other trace gases. Without a natural greenhouse effect, the temperature of the Earth would be about zero degrees F (-18°C) instead of its present 57°F (14°C). So, the concern is not with the fact that we have a greenhouse effect, but whether human activities are leading to an enhancement of the greenhouse effect.

Answer 4

It started about one hundred years ago. The World is going to blow up cause it is so warm. I mean it has raised so much. I mean so very very very much. a whole .000006 c* in the last 100 years. What are we ever gonna do?

- lol - its true though that the world has only warmed that much,in the past 100 years.

Answer 5

http://en.wikipedia.org/wiki/Global_warming