Overview
- Hamburg’s interim report shows a 42.9% emissions drop versus 1990 by 2023, with a 70% cut targeted by 2030 and citywide climate neutrality moved to 2040 by referendum.
- Transport remains Hamburg’s biggest gap at 37.8% reduction, with the Senat calling for faster EV uptake, major grid expansion, and federal support; a first annual estimate is planned for summer 2026.
- Opposition parties and environmental groups call the Senat’s outlook overly optimistic and demand stronger measures in traffic, building renovation, and rooftop solar.
- Germany raised a record €21.4 billion from EU and national emissions trading in 2025, with national certificate auctions scheduled to start in July 2026 and the EU fuel ETS now slated for 2028.
- Agora Energiewende estimates national emissions at 640 million tonnes in 2025, down 1.5%, with increases in buildings and transport that could force up to €34 billion in certificate purchases by 2030 if trends persist.