Prime Minister Rishi Sunak is set to urge world leaders at COP27 to move “further and faster” in transitioning to renewable energy.
Mr Sunak will travel to Egypt on Sunday for the UN climate summit after U-turning on a decision not to go.
In his address on Monday, he will say Russia’s invasion of Ukraine “reinforced” the importance of ending dependence on fossil fuels.
COP27 follows a year of climate-related disasters and record temperatures.
The prime minister will also tell leaders gathered in Sharm el-Sheikh not to “backslide” on commitments made at last year’s COP26 summit in Glasgow intended to prevent global temperature rises to 1.5C above pre-industrial levels.
The BBC understands that Mr Sunak will meet French President Emmanuel Macron at the summit this week and the topic of migrants crossing the Channel in small boats will likely be raised.
Read more: COP27: Cult-Owned Rishi Sunak urges world to move faster on renewable energy – because my masters say so and I never refuse cos I like my balls to stay intact. Was that okay, Mr Schwab. sir, please, sir, thank you, sir?