First detection of industrial hydrogen emissions using high precision mobile measurements in ambient air.

Projections towards 2050 of the global hydrogen (H) demand indicate an eight-fold increase in present-day hydrogen consumption. Leakage during production, transport, and consumption therefore presents a large potential for increases in the atmospheric hydrogen burden. Although not a greenhouse gas itself, hydrogen has important indirect climate effects, and the Global Warming Potential of H is estimated to be 12.