Trump ended the tweet announcing his upcoming press conference with his popular campaign slogan: "MAKE AMERICA GREAT AGAIN!"
Trump has not given any indication of which way he is leaning, saying he'd been "hearing from a lot of people, both ways".
Gov. Jerry Brown on Wednesday called on states to forge an alliance to support the Paris climate deal following reports that President Trump plans to withdraw the United States from the landmark worldwide accord.
Some of Trump's aides have been searching for a middle ground - perhaps by renegotiating the terms of the agreement - in an effort to thread the needle between his base of supporters who oppose the deal and those warning that a USA exit would deal a blow to the fight against global warming as well as to worldwide US leadership. They said the pact handcuffed United States independence and restrained economic growth, suggesting that escaping the deal would give distressed areas a freer hand.
The US is the second worst emitter of carbon dioxide in the world, according to the European Commission's emissions database, behind only China. Like the other officials, that person was not authorized to describe the private discussions by name and spoke only on condition of anonymity.
"The Paris Agreement will continue with full force of implementation even if the U.S. pulls out".
Russian Federation joined the chorus speaking out in favor of the climate accord.
The White House had previously indicated that Trump could simply recalibrate emissions targets. And Trump has reversed himself before on major policy pledges, including on whether to abandon the North American Free Trade Agreement, a step the president no longer favors.
The ongoing debate within the Trump administration over whether to leave the Paris deal, as Trump pledged to do on the campaign trail, has become the subject of media fascination, intense corporate lobbying, and worldwide vertigo.More news: Trump pulling USA out of Paris climate deal: Axios report
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"China will stand by its responsibilities on climate change", he told reporters in Berlin, according to a German translation.
Trumps chief economic adviser, Gary Cohn, has discussed the possibility of changing the USA carbon reduction targets instead of pulling out of the deal completely.
And the corporate world has by-and-large come out in favour of the U.S. keeping its seat at the table.
A dozen large groups including oil major BP, agrochemical giant DuPont, Google, Intel and Microsoft, have urged Trump to remain part of the deal.
Trump's position on the Paris accord was a focal point of last week's G7 summit in Sicily, at which leaders of the world's six other leading economies pressed him to renew the USA commitment to the deal.
"A key partner turns its back on the fight against climate change".
She described the discussion as "very hard, not to say very unsatisfactory".
And Trump's actions are likely to increase calls for local action. Its withdrawal could clearly have a major impact on the chances of the Paris agreement succeeding, and the willingness of some other countries to live up to their promises.
Immediately after the announcement, the leaders of France, Germany and Italy, Emmanuel Macron, Angela Merkel and Paolo Gentiloni, released a joint statement that said: "We deem the momentum generated in Paris in December 2015 irreversible and we firmly believe that the Paris Agreement can not be renegotiated, since it is a vital instrument for our planet, societies and economies".