WHY WOULD WE RISK OUR LIVES TO SAVE A FEW CO2 EMISSIONS AT GREAT FINANCIAL COST?

This article by Christopher Booker looks at  the latest very expensive way of reducing the UK's carbon dioxide emissions. The idea is to convert our methane gas into hydrogen and CO2 which is then pumped under ground and stored. Of course all our gas appliances would have to be converted to burn the hydrogen which is also a much greater explosion hazard, but why would our rulers worry about the occasional explosion in order to save the planet?