Washington, November 5 (RHC)-- The United States on Monday formally notified the United Nations that it was withdrawing from the Paris climate accord, making the world's largest economy the sole outsider of the agreement.

President Donald Trump went ahead with the pullout despite mounting evidence of the reality and impact of climate change, with September the fourth month in the row with near- or record-breaking temperatures.

The United States presented its withdrawal letter to the United Nations on the first possible date under the accord negotiated by Trump's predecessor Barack Obama.

It will be officially out of the Paris accord on November 4, 2020 -- one day after the U.S. election in which Trump is seeking a second term as president.  Announcing the move on Monday, Secretary of State Mike Pompeo reiterated Trump's rationale in 2017 that the accord would be a disadvantage to U.S. businesses.