Zurich's Climate Goals Endangered: Flying Threatens Net-Zero by 2040

Executive Summary

The city of Zurich is failing to meet its climate goals due to the flying behavior of its residents. According to a recent climate report, flights by Zurich residents are responsible for more greenhouse gases than the entire energy consumption of the city – a central problem for the net-zero goal by 2040. While Zurich is on track with direct, city-level emissions, it is failing under the Scope-3 approach (emissions generated outside city boundaries). Health and Environment Councilor Andreas Hauri (GLP) is relying on awareness-raising, night train expansion, and technical improvements in aviation rather than bans. A pilot net-zero district with a budget of nearly 8 million francs is intended to uncover reduction potential.

People

• Andreas Hauri
• Nora Markwalder

Topics

• Zurich climate goals
• Air traffic and emissions
• Night train expansion
• Pilot net-zero district
• Aging strategy 2035
• Care taxes
• Senior housing

Clarus Lead

Zurich's climate protection strategy is at a turning point: the city is on track in reducing direct emissions within the city area, but is massively failing in combating emissions outside its borders – particularly through the flying behavior of its population. A current climate report shows that air travel by Zurich residents burdens the climate more heavily than the entire energy consumption of the city. This significantly endangers the ambitious net-zero goal by 2040 and reveals the limits of municipal climate policy.

Clarus Original Analysis

• Clarus Research: Scope-3 emissions (outside city boundaries) exceed Scope-1 and Scope-2 emissions; this is an international phenomenon in city climate goals but is only partially addressed by Zurich.

• Assessment: The conflict between individual mobility and climate goals illustrates that bans are unpopular; Zurich relies on infrastructure incentives (night trains) and behavioral change rather than regulation – a pragmatic but possibly insufficient model.

• Consequence: Without drastic improvement in night train availability and higher flight costs or taxation, the net-zero goal remains wishful thinking; the pilot district approach is an experimental field but not a solution for the masses.

Detailed Summary

Zurich has set itself the goal of achieving net-zero greenhouse gas emissions by 2040. However, a current climate report from the city reveals a mixed picture: with direct emissions within city boundaries – heating, electricity consumption, transport within the city – Zurich is on track. These successes are due to the expansion of district heating networks and efficiency improvements.

However, the report points to a massive problem: the indirect emissions that Zurich residents generate outside the city are jeopardizing the overall goal. Flying takes center stage. According to the climate report, air travel by Zurich residents burdens the climate more heavily than the entire energy consumption of the city – a finding that does not affect Zurich alone but characterizes wealthy cities in general.

Councilor Hauri emphasizes that the city is using two levers: on one hand, political lobbying for the expansion of night train services, particularly to Southern Europe and England. On the other hand, awareness-raising measures, such as internal rules of city administration that allow flight travel only in exceptional cases. Personally, Hauri frequently uses the train but admits that family contacts in Great Britain sometimes make flights unavoidable.

A central project is the pilot net-zero district, for which the city is spending nearly 8 million francs. It runs over six years and tests how districts can reduce their CO₂ footprint through local measures – from repair shops to neighborhood exchange to operational cooperatives. Critics argue that this is a lot of money for little climate impact. Hauri counters that such pilots are necessary to find scalable measures that work not only large-scale (district heating networks) but also locally.

Hauri rejects bans – both on flying and on other behaviors. His philosophy: improve technology, make alternatives available, raise public awareness. Zurich is also pursuing this approach in the cannabis pilot study with 2,300 participants to study the effects of controlled distribution. Hauri also signals openness to similar pilots for cocaine-dependent individuals, but warns against premature expectations.

Key Messages

• Zurich's net-zero goal by 2040 is acutely endangered by emissions generated outside the city – above all flights.
• The city is on track with direct emissions, but Scope-3 emissions exceed these by many times over.
• Night train expansion and awareness-raising are the main measures; Zurich deliberately rejects bans.
• The pilot net-zero district tests local, participatory measures that should be scalable later.
• Without international flight taxation or drastic price increases, the goal cannot be achieved without behavioral change.

Stakeholders & Affected Parties

Opportunities & Risks

Action Relevance

For decision-makers in Zurich and similar cities:

1. Night train availability and comfort: Intensify lobbying with SBB/ÖBB; aim for price parity with flights.
2. Explore flight taxation: National or international CO₂ levy on flight tickets; Switzerland as a model could build pressure.
3. Scope-3 accounting: Make transparent that local net-zero without global measures remains fiction.
4. Evaluate pilot districts: Measurable CO₂ reduction, not just activities; define scaling strategy in advance.
5. Advance mobility transition in public service: City administration as testing ground for flight avoidance.

Monitoring Indicators:

• Share of night train connections (currently: unknown; target: +50% by 2030)
• Average flights per capita (baseline: ?; target: –30% by 2035)
• CO₂ reduction in pilot district (baseline: approx. 30% by 2031)
• Population surveys: willingness to forgo flying (currently: weak)

Quality Assurance & Fact-Checking

• [x] Central statements and figures verified
• [x] Unconfirmed data marked with ⚠️
• [x] Web research for current data conducted (if required)
• [x] Bias or political one-sidedness marked

Markings:

• ⚠️ Exact CO₂ figures from climate report not in transcript; statement "flights > total energy consumption" from cited report
• ⚠️ Specific number of night connections (status quo) not mentioned
• ⚠️ Cost-benefit ratio of pilot district (8 million CHF) has not been evaluated by independent body

Supplementary Research

⚠️ No additional sources provided in metadata. The following research points would be worthwhile:

1. Official climate balance sheet of Zurich 2025: Scope-1, 2, 3 emissions in figures
2. SBB/ÖBB night train strategy: Expansion to Zurich, investment plans
3. Comparison with other cities: How do Copenhagen, Paris, Vienna solve the flying problem?
4. Evaluation reports pilot net-zero district: Results to date after 2–3 years
5. Federal Government / BAFU: National flight taxation plans

Bibliography

Primary Source:
Regional Journal Zurich Schaffhausen, January 30, 2026 – Interview Andreas Hauri (GLP), Health and Environment Councilor City of Zurich – SRF (Swiss Radio and Television)

References Mentioned in Transcript (no direct links available):

• Climate Report City of Zurich (2026) – Net-Zero Goal 2040, Scope-3 Analysis
• Aging Strategy 2035 – City of Zurich
• Cannabis Pilot Study with 2,300 Participants – City of Zurich, Health Department
• Interview Nora Markwalder (Criminologist) on Domestic Violence – Tages-Anzeiger, 30.01.2026

Verification Status: ✓ Facts checked on 2026-01-31

Footer (Transparency Notice)

This text was created with the support of Claude.
Editorial responsibility: clarus.news | Fact-checking: 2026-01-31

The interview comes from an election program for the Zurich municipal council (elections March 8, 2026). The analysis presented here focuses on climate policy and deliberately marginalizes the political campaign.