President Joe Biden arrives in Europe ahead of next week’s key UN climate summit, with his signature climate policy yet to pass through the US Congress.

The president’s $1.75 trillion (£1.2tn) Build Back Better social welfare package includes more than $500bn of spending on green policies.

Before leaving Washington, Mr Biden described the measures as historic.

But differences among Democrats mean it is unlikely to pass before the summit.

“It’s a framework that will create millions of jobs, grow the economy, invest in our nation and our people, turn the climate crisis into an opportunity, and put us on a path not only to compete but to win the economic competition for the 21st Century against China and every other major country in the world,” Mr Biden said in a TV address from the White House.

Build Back Better covers a wide range of extra funding for health and child care, education and clean energy reforms.

The green spending would seek to dramatically slash US greenhouse gas emissions by 2030, provide new tax breaks for electric vehicles and roll out the installation of solar panels on American homes.