The industrial sector is the leading hydrogen consumer, with 87.1 million tonnes of hydrogen consumed in 2020. Hydrogen is used in refineries, chemical industry, and steelmaking, all categorised as "hard to abate" sectors. This large and centralised demand is critical for developing a green hydrogen sector. However, several barriers impede green hydrogen's full contribution to the industrial sector, including cost, technical, policy, lack of demand and carbon leakage risk. Policy makers can adopt industrial policies that address barriers and oblige or support a change from fossil fuel dependency of hard to abate sectors. An urgent task given the the long lifespans of industrial assets and a limited window to avert the climate crisis.