British Secretary for Foreign Affairs Boris Johnson, NATO Secretary General Jens Stoltenberg, Britain's Prime Minister Theresa May, and U.S. President Donald Trump in Brussels | Matt Dunham/AFP via Getty Images Boris Johnson: Let’s not wave fingers at Donald Trump Theresa May doesn’t have to ‘tag along’ with other EU leaders to condemn US withdrawal from climate change deal, UK foreign secretary says .

LONDON — The U.K. disagrees with the U.S. president's decision to withdraw from the Paris Agreement but will continue to work with Washington to tackle climate change, British foreign secretary Boris Johnson said.

"Let's see what Donald Trump does before we rush and wave fingers at him, accuse him of this, that or the other," Johnson told BBC Newsnight on Friday evening.

Asked why Prime Minister Theresa May had not signed the joint letter condemning Trump's withdrawal from the agreement alongside France, Germany and Italy, the British foreign secretary said: "Because as you heard the prime minister say herself, she doesn't have to tag along with a bunch of other signatories to sign a letter."

Johnson said May was speaking to the U.S. president herself "[unlike] those other leaders and she was making our views very clear."

The British view, Johnson said, remains that it would have been better if Trump had decided against withdrawing from the agreement.

Meanwhile, Martin Schulz, the former president of the European Parliament and Angela Merkel's main rival for the chancellorship later this year, tweeted on Saturday morning: "Trump is adopting the principle of targeted taboo-breaking as his means of doing politics. That connects him to [Turkish President Recep Tayyip] Erdoğan and [Hungarian Prime Minister Viktor] Orbán."