proposed

One example came during the fight against the controversial Line 3 pipeline proposed by the oil and gas company Enbridge in Minnesota.

News of the prince's visit comes at a pivotal time for the war in Ukraine after the US prepares to present a proposed 30-day ceasefire to Russia.

The proposed changes would in theory give private industry a larger selection of in-state landfills to which they could send their waste.

The countries have since resumed talks and Ukraine is ready to accept an immediate 30-day ceasefire with Russia, proposed by the US.

The UK was "intimately involved" in helping Ukraine and the US reach an agreement over a proposed ceasefire deal with Russia, according to UK government sources.