Leading figures from the conservative Union bloc have claimed a plentiful future supply of biomethane for gas heating systems. However, Germany’s Green party is strongly contesting these assertions, accusing the Union politicians of deliberately misleading their own parliamentary group. The Greens allege the claims regarding biomethane availability are inaccurate and designed to support continued reliance on gas heating. This dispute centers on the ongoing debate surrounding Germany’s “Heating Law,” a policy aimed at transitioning to renewable heating sources. The accusation highlights the intense political polarization surrounding energy policy in Germany. The Greens argue a focus on biomethane distracts from the necessary push towards heat pumps and other sustainable alternatives. This controversy underscores the challenges of achieving consensus on energy transition strategies.