French President Emmanuel Macron said nations will not negotiate the terms of the Paris climate change deal with President Trump, although he respects the U.S.'s decision to exit the deal.

Macron made the statement Tuesday during a speech to the U.N. General Assembly, saying the agreement "will not be renegotiated" as the Trump administration has sought to do.

Trump announced June 1 that the U.S. would leave the climate change agreement because it was a "bad deal" for the U.S. economy. Trump said he was open to renegotiating the terms of the U.S.'s compliance with the Paris Agreement. Trump also said he was fine if it wasn't possible to renegotiate the agreement.

It will take three years to formally withdraw from the deal under U.N. rules, which means the exit will occur during the 2020 presidential election.

Macron emphasized "we won't go back" on the terms of the deal.

He said the terms of the deal allow countries to increase their obligations under the agreement, not reduce their goals of reductions in greenhouse gas emissions, which many scientists blame for driving man-made climate change.

The Trump administration is dismantling the key parts of the U.S.'s obligations under the Paris deal, which were codified by regulations implemented under former President Barack Obama.