Natural gas is a cleaner fuel than oil or coal, as it emits fewer particulates and burns more efficiently.
However, while gas power stations are cheaper than nuclear power stations to build, gas prices are nonetheless linked to oil, which as we all know, are increasing.
Also, having methane in it’s make up, which itself is 23 times more environmentally hazardous in it’s potential to cause global warming than carbon dioxide, any leaks in the thousands of miles of pipeline necessary to transport it, will contribute to global greenhouse gases.