Carbon monoxide of carbon dioxide by electromagnetic radiation of wavelengths shorter than 169 nm. Due to its long lifetime in the mid-troposphere, carbon monoxide is also used as tracer of transport for pollutant plumes. Carbon monoxide is a temporary atmospheric pollutant in some urban areas, chiefly from the exhaust of internal combustion engines (including vehicles, portable and back-up generators, lawn mowers, power washers, etc.), but also from incomplete combustion of various other fuels (including wood, coal, charcoal, oil, paraffin, propane, natural gas, and trash). Large CO pollution events can be observed from space over cities. Carbon monoxide is, along with aldehydes, part
Natural gas in China Natural gas in China Over the last five years, gas consumption, production, and imports in China have grown dramatically, with two-digit growth. Considering China's immense demand for energy, gas plays a relatively small role in its energy use, with only 5% of total energy in 2012. However, Chinese authorities see natural gas as a lower-polluting and less carbon-intensive alternative to coal, and gas consumption is increasing rapidly. Natural gas is expected to supply 10% of the nation’s energy supply by 2020. China produced 112 billion cubic meters of natural gas in 2013, making it the sixth largest gas producer in