Why the National Emergency Briefing took place
The climate and nature crisis threatens all aspects of British life, from national security to the food supply.
Despite the scale of the risks now facing the UK, there has been no comprehensive national emergency briefing delivered to the public by the Government.
What happened in London?
On 27 November 2025, ten of the UK’s leading experts briefed an invited audience of more than 1,200 politicians and leaders from business, culture, faith, sport and the media in Westminster.
The briefing set out the implications of climate and nature breakdown for health, food systems, national security and the economy, and did so on the public record.
Its purpose was to demonstrate what a clear, evidence-led national emergency briefing could look like and why it is needed.
The question that follows is how this evidence is communicated to the public and translated into appropriate national action.
The Expert Briefings
On 27 November 2025, leading experts set out the evidence on the climate and nature crisis in a formal briefing to national decision-makers.
Nature
Professor Nathalie Seddon
Climate
Professor Kevin Anderson
Tipping Points
Professor Tim Lenton OBE
Weather Extremes
Professor Hayley Fowler
Food Security
Professor Paul Behrens
Health
Professor Hugh Montgomery OBE
National Security
Lt General Richard Nugee CB CVO CBE
Economics
Angela Francis
Energy Transition
Tessa Khan
