The two most frequently proposed ways to heat buildings in a low-carbon future in the UK are: hydrogen to power hot water boilers, or electricity to power heat pumps. Hydrogen is being suggested in two low-carbon forms, known as ‘green’ and ‘blue’.

Hydrogen is often claimed as a solution for hard to decarbonise sectors like as aviation. But is it really feasible to decarbonise the aviation sector with hydrogen? To really unpick this, let’s crunch some numbers.

Blue hydrogen is often touted as a low-carbon fuel for generating electricity. But according to a new report it may be no better for the climate than continuing to use fossil natural gas.