Such a decision is bound to frustrate allies that have spent years negotiating the deal in an effort to reduce carbon emissions.
During Trump's overseas trip last week, European leaders pressed him to keep the U.S. in the pact.
President Donald Trump will follow through on a campaign pledge to pull the United States out of the Paris climate accord, a source briefed on the decision told Reuters.
While Trump now favors an exit, he has been known to change his thinking on major decisions and tends to seek counsel from a range of inside and outside advisers, many with differing agendas, until the last minute.
Trump aides including Steve Bannon, Stephen Miller, lawyer Don McGahn and Peter Navarro, along with EPA chief Pruitt, argued hard for leaving the accord.
Trump on Tuesday met Environmental Protection Agency Administrator Scott Pruitt, who is in favour of withdrawal from the Paris Accord and will meet Secretary of State Rex Tillerson on Wednesday, the CNN reported. Senior adviser Jared Kushner generally thinks the deal is bad but would like to find a way to see if US emissions targets can be changed.
In those conversations, McKenna said she's also highlighted that 90 per cent of the accord remains to be negotiated and it's better to be at the table. It also would threaten a $100 billion-a-year stream of funds that industrial nations have pledged to persuade developing nations to cut back their own emissions, endangering the political foundations of the global fight against climate change.
"The big question is whether a USA withdrawal would lead to U.S. investors and utilities actually starting to build new plants that commit to high future emissions", said Myles Allen, professor of geosystem science at the University of Oxford's Environmental Change Institute.
McKenna said the rest of the world doesn't intend to sit and wait for Trump. "China climate relationship and the beginning of a reinvigorated partnership between China and the European Union", he said.
The accord, agreed on by almost 200 countries in Paris in 2015, aims to limit global warming in part by slashing carbon dioxide and other emissions from the burning of fossil fuels.
The United States is set to join Syria and Nicaragua as the world's only non-participants in the Paris Climate Agreement. The official, who is involved in preparing the meeting between European Union officials and China's premier, was not authorized to speak publicly and discussed the matter on condition of anonymity because the meeting statement was not finalized.
News of Trump's expected decision drew swift reaction from the United Nations. The organization's main Twitter page quoted Secretary-General Antonio Guterres as saying, "Climate change is undeniable".
But this much is already clear: Trump's administration will not actively work to stop climate change. "Climate solutions provide opportunities that are unmatchable".
Nancy Pelosi, opposition leader in the House of Representatives, said the decision would be a "stunning abdication of American leadership" and "a threat to the planet".
German Chancellor Angela Merkel, who has exchanged barbs with Trump in the days since last weekend's Group of Seven summit ended in division over Paris and trade issues, is meeting today with Chinese Premier Li Keqiang.
France's ambassador to the United States, Gerard Araud, said on Twitter that the Paris agreement "doesn't infringe on U.S. sovereignty" and noted that major American corporations had supported the deal.
On Memorial Day, Americans honor our war dead. "Most people are cooking hot dogs and hamburgers on the grill tomorrow". It's "the only major national memorial honoring all women who have defended America throughout history ".
The video uploaded by CNN and some other journalists has gone viral on the Internet and Twitter is not ready to forgive. But Trump ignored him, acting as if nothing had happened as he looked ahead self-importantly, with pouting lips.
Dixon said he couldn't have avoided Howard's vehicle . "I thought it was over at that point", Truex told his crew over the radio. Keselowski smashed into the back of Elliott and ultimately sent both cars to the garage and drivers to the infield care center.
Similar to the Christian celebration of Easter, the event falls on varying dates each year in accordance with a lunar calendar. A new month in the Islamic Calendar begins with sighting of moon on 29th of the prevailing month.
However, Assange is still not a free man, since he can be prosecuted anytime till 2020 if he chooses to return to Sweden. He claimed they were made up as part of a plot to see him extradited to the U.S. over his involvement with WikiLeaks.
Jesse Lingard pushed forward aggressively, but Palace had five players back to defend the two Manchester United attackers. But he told reporters that midfielder Pogba, the world's most expensive player, would feature at Old Trafford .
He is now flying on to Brussels for a summit of North Atlantic Treaty Organisation , the Western military alliance. Melania and Ivanka respected the Vatican clothing and wore back dressed as well as veils.
A second radar-indicated torando was moving toward the town of Lancaster just after 4 p.m., the Weather Service said. A flood watch remains in effect, as additonal 1 to 2 inches of rain could fall on the state, forecasters said.
Aubameyang scores as Dortmund win German Cup
Police made an appeal to Dortmund fans not to celebrate with more pyrotechnics after some were lit behind the west-end goal . Tuchel said Dortmund would not have won the title if there wasn't a good bond between him and the players.
Softbank-Saudi high-tech fund raises US$93 billion
The Public Investment Fund signalled an interest in the technology sector in 2016 by investing $3.5bn in Uber. SoftBank says it will put up about 25 billion dollars for the Vision Fund over the next five years.
Irish PM Kenny steps down as party leader
Donegal Junior Minister Jo McHugh has declared he will be supporting Leo Varadkar in the race for leadership of Fine Gael. A number of politicians, including the departing Finance Minister Micheal Noonan, have not yet said who they will back.
Tom Hardy Cast As Venom In Spider-Man Spinoff Movie
No title has been given as of yet, We expect to hear more about the film when Sony formally announces Hardy's portrayal as Venom . The project is one of Sony's top priorities and the studio is not wasting time as the movie is set to open October 5, 2018 .