The PM will also try to bridge the gap with the US President over the Northern Irish border as he seeks to secure a post-Brexit trade deal.
He is flying to New York on Sunday where he will use a key United Nations summit to push for more action on climate change, fearing that global efforts are insufficient.
Mr Johnson will urge world leaders to “take real action on coal, climate, cars and trees” but faces an uphill struggle to persuade them to do more.
The Prime Minister desperately wants the COP26 climate summit in Glasgow in November, in which 100 leaders have already confirmed their participation, to be a success.
Before the trip, he said: “World leaders have a small window of time to deliver on their climate commitments ahead of COP26.
“My message to those I meet this week will be clear: future generations will judge us based on what we accomplish in the months to come.
“I will push them to take concrete action on coal, climate, cars and trees so that we can make COP26 a success and keep our climate goals within reach. “
But the prime minister’s most immediate diplomatic test will ease divisions with the United States over a host of issues, including Afghanistan, Northern Ireland and coronavirus restrictions.
He is expected to lift the ban on traveling to the United States with the President that has been imposed on almost all Britons since last year, while American tourists are now allowed to travel to the United Kingdom.
The two countries have had a difficult time in their relationship since Mr Biden took office in January – despite smiling together in front of the cameras at the G7 summit in Cornwall.
Government insiders say the prime minister felt “disappointed” by the president’s refusal to extend the date for leaving Afghanistan after the fall of Kabul to get more people out.
AKHTER GULFAM / EPA-EFE / REX / Shutterstock)
The Foreign Office has been forced to deny Pentagon claims that British officials pressured their American counterparts to keep a door open at Kabul airport before a deadly bomb attack.
Mr Johnson will also try to persuade the US administration not to endanger the peace in Northern Ireland by threatening to suspend Brexit deals with the European Union.
He has been warned by the main Democrats not to “destroy” the peace process if he wants to strike a trade deal with the United States – the breakdown of the talks being described as “problematic”.
Mr Johnson sees a trade deal with the United States as a big price for Brexit, but senior government officials admit it is proving difficult.
However, Britain and the United States this week struck a security pact with Australia that includes the United States providing nuclear-powered submarines, a show of force targeting China.
The AUKUS deal sparked a diplomatic row with France because it meant Canberra canceled a $ 90 billion order with Paris to supply diesel submarines.
Angry French President Emmanuel Macron recalled his country’s ambassadors to the United States and America – while officials accused Britain of acting “opportunistically”.
AFP via Getty Images)
During his visit, Mr Johnson will address the United Nations General Assembly in New York and meet with world leaders for a series of meetings.
He will travel to Washington for the Biden summit and will also meet with Vice President Kamala Harris and senior US politicians.
New Foreign Minister Liz Truss will join him on his trip to the United States and join the five permanent members of the UN Security Council to try to agree on an approach to Afghanistan.
The U.S. tour is the prime minister’s first major overseas visit since his election, after a trip to India scheduled for earlier this year was canceled as the coronavirus swept the country.
His visit to the UN in 2019 was overshadowed by the Supreme Court’s ruling that his prorogation of Parliament was illegal.