why does global warming happen?

Answer 1

Because too much carbon dioxide from cars, factories, ect. is released into the atmosphere, and causes the Earth to hold more heat energy. Then, the entire world warms up one degree.

Answer 2

Looks like almost no one who answered this question has a clue as too why global warming is happening and the rest say its not...

There are a huge list of factors that are making the earth warmer but the ones we have noticed and can do something about are our pollutions: Co2 and other gasses, EM fields and yes EM fields have an effect on global warming imo, Overpopulation, and more... The longer we wait to solve the problem the more people will die because of it and the more costly it will be to fix. I have suggested we build a satalite that can block some of the suns energy by moving closer to the sun that way it doesnt need to be very big inorder to block a significant amount of light ect... This is an extream messure I hope we dont have to take but I think we will wait long enoth that something like this or burning the skys will probably take place in the future. Blame Bush. Blame anyone. But dont blame yourself.

Answer 3

This current little trend in global warming we are seeing is likely related to the increase in the concentration of CO2 in the atmosphere. This cause the greenhouse effect, which is actually a misnomer because the radiation is absorbed and re-emitted rather than deflected back to Earth.

However correlation does not prove cause-and-effect, despite the rise in temperature is correlated to increases in CO2, they are not necessarily related.

In fact, global warming may be more directly tied to changes in incoming solar radiation.

Another interesting fact that has nothing to do with answering your question is that the temperatures of Earth now are much cooler than they have been over the past 70 million years, according to ice core data.

Answer 4

Global warming true or false. The environmentalist think that the CO2 has increased 30% and it is a lie. go measure it. If CO2 is a primary cause because of all the fuels we burn it is still a lie. Mother nature has recycled our air for millions of years with plants which take in CO2 and give us back oxygen. Therefor the CO2 is not there neither is global warming.

Answer 5

Though it isn't completly proven, most scientific research strongly suggests that the current global warming trend is due to the increased levels of greenhouse gases (most notable is CO2). We've seen an increase in these gases since the industrial revolution due to increased manufactoring, deforestation, and automobiles. A buildup of these gases destroys the ozone layer (due to radical ions breaking off from the gaseous compounds) which acts as a protective barrier from the sun's rays. Most of the waves bounce off the layer but when holes are present more heat/light waves enter the earths atmosphere and heat the earth.

Answer 6

For the long answer-watch "An Inconvenient Truth," in which Al Gore explains why global warming is a threat and the factors that cause it. The short answer is:air pollutants thicken the atmosphere and cause heat retention that is far and above anything ever recorded in the natural cycles of the Earth.

Answer 7

A very slight increase in the percentage of "greenhouse" gases such as CO2, Methane and others causes global warming. All it takes is a little bit to turn the whole world topsy-turvy.

For example, if the air was only 1 percent CO2, the surface would soon reach the boiling point of water.

Answer 8

My name is Rafael Lomena. I write from Alicante (Spain). I am independent investigator on the Accelerated Global Heating and want to share with all something that can turn out from interest to fight this phenomenon.
I believe that the main cause of the Accelerated Global Heating is in the great and increasing forest fires that are whipping to the planet in the last years.
My complete report is in: http://inicia.es/de/rlv/clim.htm...
If they do not understand the Spanish they can use the automatic translator that will find in the main page of site:
http://inicia.es/de/rlv
Thanks to all.
(* This message has been translated with a translation software)

Answer 9

Global warming occurs so that the Dems have some to blame on the Republicans! What else is new?

Pretty soon they'll be blaming it on Bush or Halliburton because of "all that oil money"!

Answer 10

Well, the last Ice Age ended about 15,000 years ago and no one knows why. Nor do they know how it started.

By the way, there was no industrial emissions to contribute to 'global warming' 15K years ago.