Nature Energy, Published online: 29 May 2026; doi:10.1038/s41560-026-02080-z

The IMO Net-Zero Framework promotes adoption of low climate impact marine fuel through combination of pricing mechanism and fuel standard; however, fuel choice depends on competition for clean energy across sectors. Policies must consider life cycle perspective to avoid shifting impacts to the fuel supply chain and address wider environmental impacts, including land use and mineral resource depletion.

Nature Energy, Published online: 29 May 2026; doi:10.1038/s41560-026-02079-6

Shipping is a hard-to-decarbonize sector that is competing for energy and requires effective policies to cut emissions. This study shows that combining fuel standards and levies speeds up the adoption of low-carbon fuels such as ammonia but may increase other environmental impacts.

Nature Energy, Published online: 27 May 2026; doi:10.1038/s41560-026-02084-9

Energy use in AI responses

Nature Energy, Published online: 27 May 2026; doi:10.1038/s41560-026-02082-x

Controlling phase separation

Nature Energy, Published online: 27 May 2026; doi:10.1038/s41560-026-02083-w

Flowing hot and cold

Nature Energy, Published online: 27 May 2026; doi:10.1038/s41560-026-02078-7

Converting plastic waste into jet fuel could support aviation decarbonization, but current approaches are limited by high-pressure requirements and low efficiency. Here the authors present a tandem hydropyrolysis and vapour-phase hydrogenation strategy that uses a Ru/Co-Al oxide catalyst, achieving promising rates and yields at low pressures.

Nature Energy, Published online: 26 May 2026; doi:10.1038/s41560-026-02077-8

Low-bandgap tin–lead perovskites can boost solar cell efficiency but degrade quickly due to tin oxidation. Here the authors add proton-scavenging additives that stabilize inks for over 300 days, enabling 24.06% single cells and 29.56% certified tandem efficiency.

Nature Energy, Published online: 25 May 2026; doi:10.1038/s41560-026-02081-y

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