Sir Keir Starmer has been accused of "selling out" Britain as Labour is set to align the UK with EU climate change regulations.

The key part of the Prime Minister's "reset" talks with Brussels include proposals to ease trade friction by eliminating checks on exports of food and plant products, easing travel for pets and aligning carbon emissions trading.

The Times reports negotiations have started in Brussels and Britain has made concessions on EU demands for alignment on food safety rules and carbon allowances, upon which Britain will accept the jurisdiction of the European Court of Justice.

Former Brexit negotiator Lord Frost said: "We knew it was coming, but now seemingly confirmed: Britain will return to alignment with EU food standards and climate change rules and accept ECJ jurisdiction. Shame on you Keir Starmer and Nick Thomas-Symonds for selling out this country's self-government to a foreign court."

Lord Frost slammed Starmer

It comes as Labour has shot down claims the Government was willing to offer European countries an "Australian-style" youth mobility scheme under the talks.

The proposal would see young Britons, aged 18-30, similar access to countries in the European Union.

In response, thousands of young EU workers and students would be able to come to the UK to live and work for two years, with the possibility of a one-year extension.

However, the exact number of young people allowed into the UK would be capped annually to park concerns from the Home Office over its impact on immigration statistics.

Liberal Democrat MP Layla Moran has called for a return of the scheme

A number of European countries have called for youth mobility, which they say is essential to a deal. However, both Labour and the previous Conservative governments have ruled out the proposals. The Liberal Democrats and Green Party have both called for a return to the scheme.

Lib Dem MP Layla Moran said: "The Conservative government abandoned young people and our economy by trashing our relationship with Europe. A new agreement on youth mobility between the UK and our European neighbours is just common sense to help young people work and travel around the continent."

Green Party MP Ellie Chowns said: "The Green Party is very clear that people and planet would benefit from much closer relationships between our country and the European Union. We will continue to press the Labour government to be braver and bolder in overcoming the negative impacts of Brexit.

“Of course, that means building the widespread public support we need before a decision to rejoin is made. There are win-win first steps that the government should be taking today. For instance, working with the EU on a youth mobility scheme that opens up the European Union to our youngsters. "

A government spokesman said: "We do not have plans for a youth mobility agreement.

"We are committed to resetting the relationship with the EU to improve the British people’s security, safety and prosperity.

"We will of course listen to sensible proposals. But we have been clear there will be no return to freedom of movement, the customs union or the single market."