US Will Continue to Reduce Greenhouse Emissions, Says Rex Tillerson

EU Council President Tusk and Chinese Premier Li Keqiang arrive to attend a EU-China Summit in Brussels

EU Council President Tusk and Chinese Premier Li Keqiang arrive to attend a EU-China Summit in Brussels

"We feel the betrayal much more significantly because we realize that much of his support comes from within our own faith backgrounds", Webb said of Trump. "U.S. business understands this".

Singapore also reaffirmed its commitment to the Paris Agreement.

The mayor's action was a swift rebuttal to the President who, in defending his widely criticized decision Thursday, said he was elected to represent the citizens of Pittsburgh, not of Paris. As his hypothetical campaign positions become ever more real, however, Trump's challenge is maintaining those voters - and adding to them.

Trump has repeatedly cast doubt on the science of climate change and once called it a hoax perpetrated by China to weaken USA business.

Nicaragua and Syria are the only countries not party to the Paris accord; the former says it is not ambitious enough.

US President Donald Trump announces his decision to withdraw the US from the Paris Climate Accords in the Rose Garden of the White House in Washington, DC, on June 1, 2017.

Clearly, Prime Minister Justin Trudeau and other world leaders are hopeful that the states and cities will keep up the momentum for emission reductions in the United States.

Coal and cement producers say the Paris accord would put them at a competitive disadvantage and that they too are taking steps to cut emissions. He knows the USA has to be responsible with it. While Webb considers himself a conservative on many issues, he said he is not a Trump supporter.

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To remain aligned with the Paris Agreement, cities will be focusing on expanding renewable energy sources for utilities, launching infrastructure projects that are more energy efficient and offering subsidies for customers buying electric cars and solar panels. Several of his top aides also opposed the action, including his daughter, Ivanka Trump.

At home, the U.S. Conference of Mayors strongly opposed the decision and said the nation's mayors will continue efforts to reduce greenhouse gas emissions blamed for global warming.

"We have a history of pollution and industry, and we're working really hard as a city to move past that through our growing industries", said Isabella Sigado, a 21-year-old art history student at the University of Pittsburgh.

United States billionaire Michael Bloomberg has put his money where his mouth is by offering US$15 million to the United Nations to help tackle climate change.

White evangelicals overwhelmingly supported Trump, the Republican candidate in November's U.S. Presidential election.

Jason Bordoff, an energy-policy expert at Columbia University, said withdrawing from the Paris agreement would make no difference to the USA energy outlook or economy. Some of the mayors and leaders in those states have spoken out against the decision.

Friends of the Earth Scotland's Director Dr Richard Dixon described Trump as a climate change denier, saying: "Donald Trump seems intent on ripping up U.S. relationships with the rest of the world and rolling back decades of progress on social and environmental issues".

A study mentioned by Trump estimated that if the USA meets its Paris goal for reducing carbon emissions it will cost 2.7 million U.S.jobs by 2025.