Inter Press Service: Natural gas, a non-renewable yet plentiful energy source, is being promoted by the gas industry as part of the solution to climate change. But experts say that its contribution to global warming is only slightly less than that of coal and oil. Methane, the main component of natural gas, is a fossil fuel like crude and coal; when burned it produces carbon dioxide and other greenhouse gases, so called because they trap the heat of the sun’s rays in the atmosphere, warming the earth’s …