The National Emergency Briefing for Law On

The Climate and
Nature Crisis

Now is the Time to act

What will you do?

The National Emergency Briefing for Law on the Climate and Nature Crisis, held on 22 June 2026, brought together senior leaders from private practice and the judiciary to hear from seven leading experts on the science, risks and solutions relating to climate change and nature loss. The Briefing was chaired by Lord Sales, Deputy President of the Supreme Court. Read his opening comments here.
The Briefing challenged legal leaders to place climate and nature risks firmly on board and leadership agendas, ensuring that physical, financial, legal and transition risks are embedded at the heart of decision-making, while highlighting practical solutions that can be implemented immediately.
The event was the first national emergency briefing tailored specifically to a professional sector, following the National Emergency Briefing for MPs held at Westminster in November 2025.

The Film

This film features abridged versions of the briefings.

The National Emergency Briefing for Law launched a new climate conversation. We can no longer delay and defer – we need action to put climate and nature at the heart of decision making across the legal profession. At the briefing, we made three clear calls to action:

    01

    Put the impacts and risks of climate and ecosystem breakdown on the agenda for senior decision makers

    02

    Ensure every lawyer understands the issues and risks of climate change, based on the science and evidence presented at the Briefing

    03

    Join our climate conversation and use your spheres of influence to make change

    Whether you're looking to engage colleagues, build practical skills or support clients through the transition to a nature-positive economy, you'll find the tools and resources you need below.

    Lawyers in private practice and in-house counsel

    Lawyers and legal professionals working in private practice have a unique opportunity to maximise their spheres of influence to effect change.

    legal charter homepage

    Legal Charter 1.5 is an ambitious collaboration of international firms committed to transformational change on climate and nature, by understanding the business risks and opportunities of climate transition. Join the senior lawyers, General Counsel and change makers who are demonstrating climate leadership through innovation and action.

    LSA website homepage

    The Legal Sustainability Alliance is a sector wide network with two decades of experience of supporting sustainability and climate action, providing information, resources and peer to peer support to enable firms to tackle the challenges of climate transition. Check out the LSA library of resources designed to support all law firms whatever their size and wherever they are on their sustainability journey.

    LC 1.5 website climate hub

    To increase and extend your understanding of climate science, evidence and what you need to know to better support your clients as they tackle the challenges of climate transition then visit the Climate Change Legal Knowledge Hub.

    BARRISTERS AND CHAMBERS

    BSN website homepage

    Head to the Bar Sustainability Network to find resources to support chambers and barristers become climate skilled. As well as a bespoke online tool to measure carbon emissions, the BSN provides toolkits, training and support.

     Bar Council and specialist Bar Associations – the BSN is working alongside professional associations to ensure we embed the climate science and evidence into decision making.

    Greener Litigation website homepage

    Greener Litigation is a  well established network of over 100 members spanning Chambers, Private Practice and the Courts. The GLP works to improve climate awareness and action across litigation practice, tackling court bundling, AI and awareness within the judiciary.

    Greener Litigation is home to the Greener Litigation Pledge, signed by over 140 members from across the legal profession.

    BSN website homepage

    The Nature and Climate Panel aims to strengthen the Bar Council’s ability to understand and respond to the legal, ethical and practical implications of the climate crisis by promoting climate aware and environmentally sustainable practice across the profession. It also seeks to develop the profession’s understanding of how climate change and other environmental issues interact with core duties, practice areas, client needs and the public interest.

    Now is the Time to act

    What will you do?

    Speakers - Watch the individual briefings

    On Food Security - Prof Paul Behrens

    British Academy Global Professor, University of Oxford and Expert in Food System Transformations

    Paul Behrens is a renowned sustainability scientist and British Academy Global Professor at the Oxford Martin School, University of Oxford, where he leads research on the intersection of climate, energy, and food systems

    On Extreme Weather - Prof Hayley Fowler

    Professor of Climate Change Impacts at Newcastle University

    Hayley Fowler is one of the UK’s leading experts on extreme rainfall and flooding. Her research advances understanding of how precipitation extremes are changing in a warming world and develops improved projections to guide climate adaptation. Hayley was recently awarded the prestigious Royal Society Faraday Discovery Fellowship for "exceptional mid-career research leaders" to further her work on extreme weather. 

    On Energy - Tessa Khan

    Executive Director of Uplift and Energy Transition Expert

    Tessa Khan is a lawyer and campaigner and the founder and Executive Director of Uplift, an organisation that works towards a just transition away from oil and gas in the UK. Before founding Uplift, she was co-founder and Co-Director of the Climate Litigation Network, which supports strategic litigation around the world.

    On Tipping Points - Prof Tim Lenton OBE

    Chair in Climate Change and Earth System Science, University of Exeter

    Professor Tim Lenton OBE has more than 25 years research experience, focused on modelling life’s coupling to the Earth system, biogeochemical cycles, climate dynamics, and associated tipping points. Tim is world-renowned for his work identifying climate tipping points, which informed the setting of the “well below 2°C” climate target. Recently he has highlighted the opportunities for positive tipping points to accelerate social change towards net zero greenhouse gas emissions and global sustainability.

    On National Security - Lt General Richard Nugee

    Senior British Army Officer (retired)

    Lieutenant General Richard Nugee CB CVO CBE is a former senior British Army officer and leading voice on climate and national security. His 35-year military career included operational tours in Northern Ireland, the Balkans, Iraq and Afghanistan, where he served as Chief of Staff to NATO’s ISAF Joint Command. He later became Chief of Defence People and was awarded the US Legion of Merit.

    On Nature - Prof Nathalie Seddon

    Founding Director of the Nature-based Solutions Initiative and The Agile Initiative at the University of Oxford

    Nathalie Seddon is Professor of Biodiversity at the University of Oxford. A former Royal Society University Research Fellow and recent recipient of a prestigious Marsh Award for Ecology, she trained as an evolutionary ecologist at the University of Cambridge and has over 25 years’ experience working across ecosystems worldwide.

    On Financial Markets - Ido Eisenberg

    Head of Responsible Investment at Quilter

    Ido Eisenberg has more than 20 years’ experience in investment management and sustainability. He is Head of Responsible Investment at Quilter, where he leads the development and implementation of the firm’s approach to sustainable investing. Prior to joining Quilter, he advised asset and wealth managers on sustainable finance and regulation, and spent nearly two decades as an equity investor at J.P. Morgan Asset Management.

    “We are facing the potential of an ungovernable state unless government takes this seriously.”

    Lt. General Richard Nugee

    "If we've crossed this tipping point in London, it's -20°C in three frozen months of the year, and in Edinburgh it's -30°C in five and a half-frozen months of the year."

    Prof Tim Lenton

    "We have to be straight with people about the choices ahead, because if we don’t lead this change on the front-foot, we’ll be forced into it anyway as food shocks intensify."

    Prof Paul Behrens 

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