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SMOG IN PAKISTAN
It is the most recent episode that thick fog covers Lahore , blocking out the winter sunshine, closing off the motorway after dusk and preventing flights from landing at the international airport at night. Residents of Lahore, are facing a dense blanket of smog that has reduced visibility for commuters and been responsible for several respiratory and mental illnesses. The problem has grown worse over the last five years due to the high levels of pollution and poor air quality in the city, created by increasing vehicular, industrial emissions, coal-based power plants, and burning of agriculture waste.To break it down, smog is a mixture of different pollutants, including oxides of nitrogen (NOx), oxides of Sulphur (SOx), carbon monoxide (CO), particulate matter (PM), volatile organic compounds (VOC), and the ozone. The main pollutant responsible for smog built up is NOx. Historically, the most lethal smog was the London’s Great Smog in 1952, when more than 12,000 deaths were repor...
STUDY CLAIMS ENDANGERED MAMMALS AND BIRDS ARE AMONG GROUPS WORST-HIT BY GLOBAL WARMING.
Nearly half of endangered mammals and a quarter of birds are already harmed by climate change—a much bigger segment than previously thought, researchers have found.Endangered primates and elephants are among the groups squeezed hardest by global warming, partly because they reproduce slowly and thus take longer to adapt to rapid environmental changes, they reported. While most studies seek to predict global warming’s future impact on animal survival, the new analysis found that for “large numbers” of threatened species, the damage was already being done. The data suggests that “the impact of climate change on mammals and birds in the recent past is currently greatly under-appreciated,” said a study in the journal Nature Climate Change this week.According to co-author James Watson of the Wildlife Conservation Society, “something significant needs to happen now to stop species going extinct.”“Climate change is not a future threat anymore,” he added....