Publications
Browse through our publications, from reports and briefings to insights and more.
Home heating trial risks misleading consumers
Our legal complaint to the CMA, outlining why SGN’s hydrogen heating claims constitute greenwashing and risk delaying the transition to genuine low-carbon heat.
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Data centres must be included in UK’s decarbonisation plans
Briefing calling for mandatory decarbonisation plans for UK data centres to ensure the sector’s rapid growth is compatible with national climate commitments.
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OECD complaint against ArcelorMittal
Legal complaint challenging ArcelorMittal’s green steel claims, highlighting the urgent need for corporate transparency and truthful environmental advertising.
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Closing Ireland’s aviation climate gap
This report examines how Ireland can place climate action at the heart of its leadership while generating significant revenue through introducing a fair air travel levy and expanding the EU Emissions Trading System (EU ETS) to include international flights.
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1 June 2024
NGOs call on train and ferry companies to restore Sail & Rail service
NGO letter asks train and ferry companies to restore Sail & Rail to its former glory.
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1 June 2024
Open letter: restore sail & rail service
OG and partners call on train and ferry companies to improve the Sail & Rail service.
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21 May 2024
Groundbreaking climate opinion from international court
ITLOS advisory opinion clarifies States' legal obligations to mitigate climate change.
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20 May 2024
Advisory opinions: the dawn of climate clarity under international law
An in‑depth look at the advisory function of the international court and its significance in clarifying states’ legal obligations.
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1 May 2024
Submission to Aotearoa New Zealand Climate Change Commission
Discover our legal analysis and evidence submitted to the Climate Change Commission to ensure all sectors reach net zero.
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1 May 2024
Access to information on climate change and human rights
Read Opportunity Green’s submission to the UN on the need for better access to information on climate change to protect human rights and hold polluters accountable.
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25 April 2024
How climate change affects global Muslim communities
How climate change affects adherents of Islam all over the world.
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17 April 2024
KlimaSeniorinnen: major win before the European Court of Human Rights
Swiss senior women secure a historic legal victory.
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9 April 2024
The IMO’s March Meetings: what next for shipping?
The key outcomes from the IMO’s 2024 March meetings.
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1 April 2024
Annual report and financial statements 2024/25
Download the report to read reflections from our CEO and Chair, and discover what we've got planned for the future.
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28 March 2024
Court rules KLM’s vague green claims mislead consumers
Read about the KLM greenwashing legal victory and what it means for truth in advertising, airline accountability and climate action in aviation.
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26 March 2024
Why do women remain the unsung heroes of climate action?
For Women’s History Month, Blánaid Sheeran discusses women’s relationship with climate change and climate justice.
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