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The report concludes that the EU's demand for fossil gas and oil is in a long-term structural decline, making new production projects—especially in the Arctic—unnecessary and incompatible with 1.5°C warming limits. Analysis shows that existing production and current contracts will likely exceed EU demand by the 2030s in net-zero aligned scenarios, creating a risk of oversupply and stranded assets.

The document examines biomethane derived from landfills, wastewater treatment centers, and dairies as a replacement for diesel and natural gas in California's heavy-duty vehicle fleets. While acknowledging its climate benefits over fossil fuels, the authors highlight that California's total biomethane potential from waste would meet only 3% of the state's natural gas demand and 15% of its diesel consumption. The report warns that promoting compressed natural gas (CNG) vehicles could inadvertently increase reliance on fossil natural gas due to this supply gap. It concludes that biomethane provides the greatest emissions reductions when used to generate electricity or hydrogen for electric vehicles, but that battery electric vehicles powered by the grid remain the most effective path for meeting climate goals.