Biden sets goal to reduce planet-warming pollution with clean hydrogen.

The Biden administration aims to produce 50 million metric tons of clean hydrogen fuel by 2050 to cut around 10% of the country's planet-warming pollution. Hydrogen is seen as a source of energy that burns without pollution and can be derived from water, but it could also be generated by the fossil fuels it seeks to replace. The US would need about 14 million metric tons of hydrogen per year by 2050 to achieve its decarbonization goals, whereas the administration's figure would result in about 2 million metric tons per year. The technology is still years from being fully commercially viable, and there are concerns about over-reliance on hydrogen derived from fossil fuels.