Its been a long time ago when I wrote about global warming. I just checked again and I remember I lost that article due to hosting problem at that time. Well, probably if I have more time I will rewrite it, or copy it here if I still have the copy of the file. As you know, the major cause of global warming is the presence of CO2, well known as one of the greenhouse gases exist in our atmosphere.
Now the sources of this CO2 vary, from industries until the biggest major pollution source, is transportation. As matter as fact, vehicles in both developed and developing countries have a very significant growth. Thats bad I will say. Why, that will make more CO2 being released on our atmosphere. The presence of CO2 will trap most of UV light sent by the sun, thus will increase the temperature of the earth. Enough to say, but the proof is already in front of us.