The impact of hydrogen leakage on climate exceeds CO_ More than 2 times

Science and Technology Daily (reporter Liu Xia) An international scientific research team led by scientists from the International Climate and Environment Research Center (CICERO) in Oslo, Norway, published a paper on the magazine Communication Earth and Environment published on June 7, saying that the impact of leaked hydrogen on global warming is almost 12 times that of carbon dioxide (CO2). This is the most comprehensive assessment of the climate impact of hydrogen gas to date, filling the relevant knowledge gap

Science and Technology Daily (reporter Liu Xia) An international scientific research team led by scientists from the International Climate and Environment Research Center (CICERO) in Oslo, Norway, published a paper on the magazine Communication Earth and Environment published on June 7, saying that the impact of leaked hydrogen on global warming is almost 12 times that of carbon dioxide (CO2). This is the most comprehensive assessment of the climate impact of hydrogen gas to date, filling the relevant knowledge gap.

Maria Sander, the research leader and senior scientist at CICERO, pointed out that the combustion of coal and the presence of CO_ Gas of 2 produces different types of exhaust gases, while burning hydrogen only emits water vapor and oxygen. Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere can affect greenhouse gases such as methane, ozone, and stratospheric water vapor. Therefore, hydrogen released during production, transportation, and use can exacerbate global warming.

In the latest research, Sander et al. used five different Atmospheric chemistry models to study the changes of Atmospheric methane, ozone and stratospheric water vapor. Since hydrogen interacts with various Biogeochemistry processes, new research includes soil absorption, photochemical production of hydrogen, life span of hydrogen and methane, and interaction between hydrogen and methane. The results indicate that the global warming potential (GWP) of hydrogen is 11.6- according to convention, CO_ The GWP value of 2 is 1.

Sander pointed out that there has been insufficient research on the impact of hydrogen on climate, and this study is the most comprehensive assessment of the climate impact of hydrogen to date. Some previous papers based on single mode research have also confirmed their latest estimates. Research has clearly demonstrated the importance of reducing hydrogen leaks, and scientists are currently developing technologies to monitor and detect hydrogen leaks. Hydrogen is the core of the energy transformation. The potential benefits of turning to the Hydrogen economy will depend on the degree of hydrogen leakage and the extent to which hydrogen can replace fossil fuels.

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