It is cheap - see the huge fall in gas prices since the introduction of fracking. The US has gone from being a net importer of natural gas to an exporter, such

It is cheap - see the huge fall in gas prices since the introduction of fracking. The US has gone from being a net importer of natural gas to an exporter, such is the increase in supply. "Secure" doesn't mean "is never going to run out", but rather that we don't have to rely on other countries from it. The UK can meet some of its natural gas needs with local fracking, reducing the need to import gas. (And other commenters have addressed the low carbon thing)