Executive in pledge to cut greenhouse gas output by 2.7m tonnes. Ministers called on every household and business to play a part in reducing emissions equivalent to 2.7 million tonnes of carbon a year by 2010 compared to 2000. [News Source]

China crucial to climate debate. The high economic growth rates of China and India-- 8 percent to 10 percent this year for China and about 7 percent to 8 percent for India -- are cause for concern when is comes to climate change. [News Source]

Mexico City a living laboratory for smog study. Hundreds of atmospheric scientists are wrapping up a monthlong study of the reach and repercussions of Mexico City's pollution: Where does it go? What does it become? What is its effect on climate and weather? [News Source]

Chemical reaction. A new study could cast doubt over claims that Halton's shocking cancer death rate is the result of unhealthy lifestyles and not chemical contamination in the ground, air and water. [News Source]