Publications
Browse through our publications, from reports and briefings to insights and more.
Improving the EU aviation ETS
The EU ETS review is a rare opportunity to strengthen the aviation ETS. Here’s how the EU can use it to deliver its full potential.
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Aviation and the EU ETS: key questions answered
As the EU is weighing extending its ETS to international flights, this FAQ explains what is at play.
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16 organisations call for better Sail & Rail service between UK and Ireland
Discover why Opportunity Green and 15 partner organisations are calling on the UK and Irish governments to make Sail & Rail travel easier to find, book and trust.
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Loaded: the legal risks of air pollution caused by Heavy-Duty Vehicles
Diesel trucks produce a disproportionate share of deadly air pollution, exposing governments and manufacturers to growing legal and financial risks.
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The UK’s agricultural methane regulatory gap and legal risks
The UK's lack of agricultural methane rules exposes the Government to rising legal risks.
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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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Filter our publications by topic, type and date.
20 January 2026
Response to UK ETS expansion for international shipping
How can the UK strengthen global maritime decarbonisation and ensure the transition is fair and inclusive?
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15 January 2026
Response to the OHCHR call on climate finance and human rights
How shipping and aviation can deliver equitable, human rights-aligned climate finance – and the legal barriers to overcome.
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3 December 2025
Paris climate plans (NDCs)
What are NDCs, how do they relate to the Paris Agreement – and what role do aviation and shipping play in them?
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3 December 2025
The International Maritime Organization and climate change
Our guide to the International Maritime Organization's role in decarbonising international shipping.
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3 December 2025
Open letter to UK Government on ECAs
OG and partners urge the UK government to expand Emissions Control Areas to all UK waters to tackle harmful shipping pollution.
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2 December 2025
Maritime freight: local and global impacts
This report charts a way towards cutting shipping emissions and improving the lives of those living closest to these trade ports.
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1 November 2025
Adjournment of the IMO’s Net-Zero Framework
IMO’s Net-Zero Framework is delayed, but ambition, timelines, and equity remain negotiable.
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16 October 2025
Don’t be fossil fooled: Say No To LNG
Pulling back the curtain on LNG's climate impact as a shipping fuel.
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14 October 2025
Five reasons Arctic Shipping Climate Benefits might be too good to be true
Arctic routes promise faster, lower-emission shipping – here’s why the reality is more complex.
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9 October 2025
The IMO must champion ambition and equity in shipping climate talks
The IMO prepares for historic negotiations on the Net-Zero Framework.
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1 October 2025
Air pollution in ports: a human rights issue
Why port pollution is a climate, health and human rights issue today.
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1 October 2025
Open letter to cruise ticket sellers
Opportunity Green challenges misleading “eco‑friendly” ads for fossil LNG‑powered cruises in UK.
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