"Coal is going down in the United States, and that's good news for the Earth's climate. The US Energy Information Administration has announced that coal, the dirtiest and most carbon-intensive conventional fossil fuel, generated only 36 per cent of US electricity in the first quarter of 2012. That amounts to a staggering 20 per cent decline from one year earlier. And the EIA anticipates additional decline by year's end, suggesting a historic setback for coal, which has provided the majority of the US' electricity for many decades." - Nicķ from Bookmarklet

very well - سین به توان چهار