Group 1 - The core finding of the research indicates that hydrogen emissions indirectly contribute to global warming, accounting for a temperature increase of 0.02 degrees Celsius from 1990 to 2020 [1][2] - The increase in hydrogen emissions is primarily due to human activities, particularly the decomposition of methane and other compounds, with annual emissions rising by approximately 4 million tons since 1990, reaching 27 million tons by 2020 [2] - The study highlights a vicious cycle where increased methane leads to more hydrogen emissions, which in turn prolongs methane's atmospheric presence, exacerbating global warming [2][3] Group 2 - Researchers emphasize the need for a deeper understanding of the global hydrogen cycle and its relationship with global warming, as hydrogen emissions may diminish the benefits of using hydrogen energy as a substitute for fossil fuels [3]
研究：全球变暖，氢排放“有份”
Xin Hua She·2025-12-20 05:14