US Withdrawal from UNFCCC: Implications for Global Climate Action

What’s happening

On 7 January 2026, President Trump instructed federal agencies to end U.S. participation in the UNFCCC and related international climate bodies. This decision formalises the U.S. federal government’s departure from the world’s foundational climate treaty and places the country outside the primary global framework for coordinated climate action.

Experts have warned that this move weakens international climate diplomacy and reduces the legal basis for U.S. engagement in global negotiations on emissions reduction, climate finance and adaptation.

Why this matters for UK businesses

For UK SMEs and larger organisations alike, the U.S. withdrawal highlights a growing divergence in global climate governance. While UK climate obligations remain unchanged including SECR, ESOS, procurement requirements and investor expectations international inconsistency can increase operational and compliance complexity.

This matters particularly for businesses that:

• Operate internationally or supply U.S. linked value chains

• Sell into markets with sustainability-led procurement criteria

• Report against international frameworks or science-based targets

• Rely on long-term climate risk planning and disclosure

In practice, expectations from customers, regulators, lenders and investors continue to rise regardless of shifts in U.S. federal policy.

Important context: U.S. states are still driving climate action

It is important to distinguish between U.S. federal policy and state-level action.

Many U.S. states, cities and businesses continue to lead on climate policy, clean energy and innovation. States such as California, New York, Washington and Massachusetts maintain ambitious emissions targets, renewable energy mandates and climate disclosure requirements.

Collectively, these states represent a significant share of the U.S. economy and remain aligned with international climate goals through sub-national initiatives, private-sector commitments and regional climate alliances.

For UK businesses, this means:

• Climate expectations within U.S. markets remain highly variable

• Many U.S. partners and customers still require robust climate data

• Clean energy, climate tech and low-carbon innovation continue to grow

In short, global momentum on climate action has not disappeared it has become more fragmented.

Key facts at a glance

• U.S. withdrawal from the UNFCCC announced on 7 January 2026

• The U.S. federal government becomes the only non-party to the UNFCCC

• Many U.S. states and cities continue to pursue ambitious climate policies

• UK climate and reporting obligations remain unchanged

SBS insight

This decision reinforces a wider trend: climate action is increasingly being driven by markets, regulation, investors and customers, rather than relying solely on international agreements.

For UK businesses, the priority remains the same credible data, clear reporting and practical carbon reduction plans aligned with recognised standards. Those that stay proactive will be better positioned to manage risk, win work and remain competitive as expectations continue to evolve.

How SBS can support you

We support businesses to:

• Measure and report carbon emissions aligned to recognised standards

• Develop practical, proportionate net-zero and carbon reduction plans

• Navigate changing UK and international sustainability requirements

• Respond confidently to client, investor and procurement expectations

If you’d like to understand how this changing global landscape affects your business or need support strengthening your sustainability strategy we’re here to help.

👉 Get in touch to discuss your sustainability and net-zero priorities

Further reading

Presidential Memorandum – Withdrawal from international organisations and treaties
https://www.whitehouse.gov/presidential-actions/2026/01/withdrawing-the-united-states-from-international-organizations-conventions-and-treaties-that-are-contrary-to-the-interests-of-the-united-states/

U.S. Treasury – Withdrawal from the Green Climate Fund
https://home.treasury.gov/news/press-releases/sb0352