Why investors are snapping up hydrogen stocks Premium FILE PHOTO: A Hyundai Motor's Nexo hydrogen car is fuelled at a hydrogen station in Seoul, South Korea, August 13, 2019. REUTERS/Kim Hong-Ji (REUTERS) Thyagaraju Adinarayan, , Reuters Share prices of companies in the industry have soared more than 500% in the past year, driven by the rising adoption of zero-emission vehicles, a deadline set by many countries to go carbon-free by 2050 and lately US President-elect Joe Biden's support for clean energy Share Via Read Full Story LONDON : An unprecedented rally in "green" hydrogen stocks looks set to extend as investors flock to companies which promise to produce the gas without using fossil fuels, expecting the technology to scale up over the next 10 years to justify rocketing valuations.