London Daily

Focus on the big picture.
Monday, Jul 13, 2026

Cop26 failure could mean mass migration and food shortages, says Boris Johnson

Ahead of G20 meeting, PM warns of ‘difficult geopolitical events’ echoing those that ended Roman empire
A failure by world leaders to commit to tackling the climate emergency at the Cop26 summit in Glasgow could prompt “very difficult geopolitical events” including mass migration and global competition for food and water, Boris Johnson has said.

Speaking before the start of a gathering of leaders from the G20 industrialised nations in Rome, where he will push for countries to arrive in Glasgow with fixed plans to cut emissions, Johnson said the chances of success hung in the balance.

In a round of broadcast interviews in Rome, he was reminded that he had said in September that there was a six out of 10 probability of the Cop summit producing the necessary action, and asked what he now thought.

“I’d say they’re about the same,” he told the BBC. “I think that everybody needs to focus. What the UK has been trying to do is take the abstract concepts of net zero that we talked about in Paris six years ago, and to turn them into hard, sharp deliverables in terms of reducing coal use, reducing the use of internal combustion engines, planting millions of trees and getting the cash that the world needs to finance green technology.’’

Speaking to reporters on the way to Rome on Friday, Johnson used the example of the collapse of the Roman empire to highlight what he said was the possibility of runaway climate change bringing a decline in civilisation.

Questioned about the stakes for Cop26 in Rome, where he was interviewed next to the Coliseum, Johnson reiterated his warnings about the consequences for the globe.

“If you increase the temperatures of the planet by four degrees or more, as they are predicted to do remorselessly, you’ll have seen the graphs, then you produce these really very difficult geopolitical events,” he told Channel 4 News.

“You produce shortages, you produce desertification, habitat loss, movements, contests for water, for food, huge movements of peoples. Those are things that are going to be politically very, very difficult to control.

“When the Roman empire fell, it was largely as a result of uncontrolled immigration. The empire could no longer control its borders, people came in from the east, all over the place, and we went into a dark ages, Europe went into a dark ages that lasted a very long time. The point of that is to say it can happen again. People should not be so conceited as to imagine that history is a one-way ratchet.

“Unless you can make sure next week at Cop in Glasgow that we keep alive this prospect of restricting the growth in the temperature of the planet then we really face a real problem for humanity.”

Johnson has faced criticism this week for his own inaction over tackling emissions, with Wednesday’s autumn budget again froze fuel duty, and cut levies on shorter, domestic flights, but he arrived in Rome bearing a blunt message for fellow G20 leaders.

“Too many countries are still doing too little,” the prime minister’s spokesperson said, setting out the message that will be delivered.

“As the countries with the greatest historic and modern contributions to global warming, who have built their economies on the backs of burning dirty fossil fuels, the G20 holds the key to unlocking global action and making the progress we so badly need to live up to our commitments.”

Asked on Saturday whether the cut to passenger duty had undermined his message, Johnson rejected this.

“We increased air passenger duty for long-haul flights, 96% of CO2 emissions come from long haul flights,” he told Channel 4 News. “What we will do is ensuring we have proper connectivity in the islands of the United Kingdom, which is an entirely sensible thing to do.”

In Rome, Johnson will hold bilateral talks with Scott Morrison, the Australian prime minister, whose own record on reducing emissions has been heavily criticised, as well as Canada’s Justin Trudeau and Italy’s Mario Draghi.

Johnson is not due to hold a one-on-one meeting with Joe Biden, the US president, who will be at the G20 and Cop26, although the pair will attend a meeting in Rome about the Iran nuclear deal.

Also attending this meeting will be the French president, Emmanuel Macron, and the German chancellor, Angela Merkel, who is expected to bring along her likely successor, Olaf Scholz, currently the finance minister.
Newsletter

Related Articles

0:00
0:00
Close
World Cup Visitors Turn American Big-Box Stores Into Souvenir Stops
Netflix Weighs Always-On Channels, Bundles and Short-Form Video
Passenger Is Pulled Partly Outside Ryanair Jet After Window Fails Mid-Flight
Innovation-led growth strategy
Public service reform pressure
Defence and industrial security
Labour leadership transition and economic reset
Northern England Pushes for Greater Influence in Britain’s Future Economic Model
UK Technology Strategy Focuses on Life Sciences, Digital Innovation and Research Investment
Britain and United States Maintain Focus on Pharmaceuticals Cooperation and Industrial Growth
UK Public Services Face Continued Pressure as Government Promises Visible Improvements
Regional Economic Power Becomes Key Theme in Britain’s Next Political Phase
Britain Expands Support for Small Businesses as Firms Seek Better Access to Finance
UK Economy Remains Central Political Challenge as Cost of Living and Growth Concerns Persist
National Health Service Introduces New Workplace Reviews to Improve Conditions for Healthcare Staff
UK Life Sciences Sector Secures More Than Three Billion Pounds in Investment to Support Innovation
Britain Strengthens Defence Strategy as Security Concerns Reshape Military and Industrial Policy
Andy Burnham Promises Stronger UK Defence Industry and Expanded Domestic Production
UK Government Faces Difficult Spending Choices as Labour Leadership Transition Approaches
Rachel Reeves Warns Andy Burnham of Immediate Economic Challenges After Expected Leadership Change
Andy Burnham Prepares to Lead UK Government With Plans for Regional Power Shift and Economic Reset
Government Creates Emergency Support Scheme for Financially Struggling Universities
United Kingdom Replaces Traditional Farm Subsidies With Payments Linked to Environmental Performance
National Grid Reports First Week of Electricity Generation Without Fossil Fuels
United Kingdom Financial Regulator Introduces Tougher Capital Rules for Cryptocurrency Exchanges
Belfast Harbour Expands Operations to Attract Investment Through United Kingdom and European Union Market Access
Scottish Government Threatens Legal Challenge Over Westminster Cuts to North Sea Transition Funding
United Kingdom Accelerates Trans-Pennine High-Speed Rail Project Linking Northern Cities
United Kingdom Secures Ten Billion Pound Investment for Cambridge Quantum Computing Campus
Port Talbot Steelworks Wins Support for Green Hydrogen Transition and Protection of Industrial Jobs
United Kingdom Sends Royal Navy Carrier Strike Group to Indo-Pacific as Regional Security Focus Expands
National Health Service Expands Artificial Intelligence Diagnostics Across England to Reduce Screening Backlogs
United Kingdom Launches Fifty Billion Pound Infrastructure Fund to Accelerate Housing and Construction
UK Medical Chiefs Update Health Guidance to Promote Everyday Physical Activity
Office of Communications Keeps Wikipedia Under Review Under UK Online Safety Rules
UK Defence Ministry Expands Deep-Strike Capability Through Precision Missile Programme
Russell Group Universities Warn Funding Cuts Could Damage NHS Workforce Training
UK Parliament Calls for National Emergency Broadcast as Heatwave Conditions Intensify
UK and Netherlands Strengthen Naval Cooperation With New Amphibious Defence Partnership
UK Defence Ministry Joins International Missile Programme With One Hundred and Ninety Million Pound Investment
Bank of England Warns Middle East Conflict and AI Risks Could Pressure UK Economy
UK Government Introduces New Rules to Limit Foreign Influence in Political Donations
UK and France Prepare Naval Mission to Protect Shipping Through Strait of Hormuz
United States Pressures UK to Increase Defence Spending at NATO Summit
Bank of England Warns Artificial Intelligence Investment Boom Could Create Financial Stability Risks
Bank of England Begins Direct Oversight of Critical Technology Providers Supporting UK Finance
Andy Burnham Set to Become UK Prime Minister After Labour Leadership Race Clears Path to Downing Street
Scottish Fishing Industry Calls for Emergency Support Amid Rising Costs
UK Supports Stronger European Response to Russian Actions in Ukraine
Devon and Cornwall Police Release Suspect in Ann Widdecombe Murder Investigation
×