If they were being honest about it, they’d go after the emissions from Londoners’ central heating installations too.
They are, the gas mains will probably be changed to hydrogen according to the latest statements from the UK government starting in around 6 years time.
There is a certain irony in that the old Town Gas" produced far less CO2 than "High Speed" clean North Sea gas. I read that up to 10% H2 can be blended with natural gas, without the need to re-jet anything.
Its composition varies, but in general it is made up largely, up to 70%, of hydrogen and methane with small amounts of other hydrocarbons, carbon monoxide (a poisonous gas), carbon dioxide, and nitrogen.
Of course, the problem with Hydrogen burning is it produces a lot of water vapour: remember the amount of condensation that used to be found in houses with gas fires?
