Unexpected pathway turns water and CO₂ into climate‑neutral methane on nickel–zirconia

Natural gas still plays an important role in many industrial sectors, but it is a climate-damaging fossil fuel. TU Wien and the University of Innsbruck have now discovered an unexpected reaction pathway that makes it possible to synthesize natural gas, or methane (CH4), using CO2 that was previously captured from exhaust gas streams or directly from the air. In this way, methane can become climate-neutral overall.