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West Should Help China Check Its Greenhouse Gas Emissions
February 25, 2008 at 11:52 AM
Environmental Health
For instance, if the current growth rates continue unchecked, by 2030 the country could be emitting as much carbon into the atmosphere as the entire world does today.
Also China is bringing on line coal-fired power plants major sources of greenhouse-gas emissions at the mind-boggling rate of two per week.
Many greenhouse gases occur naturally, such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Others such as hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) result exclusively from human industrial processes. Carbon dioxide is released into the atmosphere by the burning of solid waste, wood and wood products, and fossil fuels (oil, natural gas, and coal).
Nitrous oxide emissions occur during various agricultural and industrial processes, and when solid waste or fossil fuels are burned.
Methane is emitted when organic waste decomposes, whether in landfills or in connection with livestock farming.
Methane emissions also occur during the production and transport of fossil fuels.
When sunlight strikes the Earths surface, some of it is reflected back towards space as infrared radiation (heat). The greenhouse gases mentioned above absorb this infrared radiation, trap the heat in the atmosphere and reemit the waves downward causing the temperature of the earth to go up.
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