Ethiopia
Global warming may not have been seen in full yet. There is a secondary effect called Global dimming hiding the true effects of global warming. Global dimming make the Earth absorb less sunlight and the first impression is that the Earth would start to cool down. At first this seems like a good solution to the problem of global warming that we have, but it is to be believed that global dimming is also the cause of the droughts in Ethiopia back in 1970’s and 1980’s. This was probably because of the northern hemisphere not being hot enough to not be able to generate rain formations. Another issue with the clouds that create the situation of global dimming is that the rain that comes from these clouds are often acidic and can create respiratory problems moreover bring smog. Global dimming brings climate change in the form of increasing hotter places to become even hotter, and colder places to become even colder.
Every one of us is a con artist, the person we're best at conning is ourselves. - Bradc
(Quoted from http://www.gpforums.co.nz/thread/462970/?s=)
Maldives
The Maldives: a nation of a thousand tiny islands in the middle of the Indian Ocean, so recently battered by the Asian tsunami. It was here that Veerabhadran Ramanathan, one of the world's leading climate scientists first began to unravel the mystery of what's causing Global Dimming. He had first noticed declining sunlight over large areas of the Pacific Ocean in the mid-1990s. Burning fuel doesn't just produce the invisible greenhouse gases which cause global warming. It also produces visible pollution, tiny airborne particles of soot and other pollutants. These produce the haze which shrouds our cities. So Ramanathan wondered: Could this pollution be causing Global Dimming? The Maldives were the perfect place to find out. The Maldives seem unpolluted, but in fact the northern islands sit in a stream of dirty air descending from India. Only the southern tip of the long island chain enjoys clean air coming all the way from Antarctica. So by comparing the northern islands with the southern ones, Ramanathan and his colleagues would be able to see exactly what difference the pollution made to the atmosphere and the sunlight. Project INDOEX, as it was called, was a huge multinational effort. For four years every possible technique was used to sample and monitor the atmosphere over the Maldives. INDOEX cost twenty-five million dollars, but it produced results - and they surprised everyone.A 10% fall in sunlight meant that particle pollution was having a far bigger effect than anyone had thought possible. In the polluted air billions of man-made particles provided ten times as many sites around which water droplets could form. So polluted clouds contained many more water droplets, each one far smaller than it would be naturally. Many small droplets reflect more light than fewer big ones. So the polluted clouds were reflecting more light back into space, preventing the heat of the sun getting through. This was the cause of Global Dimming.
Our models led us to believe the human impact on the dimming was close to half to one per cent. So what we discovered was tenfold.- Veerabhadran Ramanathan