WPXI
Now playing
01:05
Pittsburgh mayor outraged by Trump's comment
Getty Images
Now playing
00:57
Draft study warns of severe climate change
pool
Now playing
01:09
Pruitt (still) won't say what Trump believes
WASHINGTON, DC - JUNE 01:  U.S. President Donald Trump announces his decision for the United States to pull out of the Paris climate agreement in the Rose Garden at the White House June 1, 2017 in Washington, DC. Trump pledged on the campaign trail to withdraw from the accord, which former President Barack Obama and the leaders of 194 other countries signed in 2015. The agreement is intended to encourage the reduction of greenhouse gas emissions in an effort to limit global warming to a manageable level.  (Photo by Win McNamee/Getty Images)
Win McNamee/Getty Images
WASHINGTON, DC - JUNE 01: U.S. President Donald Trump announces his decision for the United States to pull out of the Paris climate agreement in the Rose Garden at the White House June 1, 2017 in Washington, DC. Trump pledged on the campaign trail to withdraw from the accord, which former President Barack Obama and the leaders of 194 other countries signed in 2015. The agreement is intended to encourage the reduction of greenhouse gas emissions in an effort to limit global warming to a manageable level. (Photo by Win McNamee/Getty Images)
Now playing
00:54
Staff mum on if Trump believes climate change
Prime Minister Justin Trudeau and U.S. President Donald Trump walk together during the G7 Summit in Taormina, Italy on Saturday, May 27, 2017. (Sean Kilpatrick/The Canadian Press via AP)
Sean Kilpatrick/The Canadian Press via AP
Prime Minister Justin Trudeau and U.S. President Donald Trump walk together during the G7 Summit in Taormina, Italy on Saturday, May 27, 2017. (Sean Kilpatrick/The Canadian Press via AP)
Now playing
01:36
Trump has said often climate change isn't real
al gore trump paris agreement climate crisis town hall sot_00001017.jpg
al gore trump paris agreement climate crisis town hall sot_00001017.jpg
Now playing
01:47
Gore: Trump surprised me on Paris Agreement
panelists spar over climate deal
CNN
panelists spar over climate deal
Now playing
02:38
Panel erupts: Stop using fake stats
pool
Now playing
01:25
President Trump withdraws US from Paris accord
Now playing
01:44
Haley: Trump believes the climate is changing
india react trump withdrawl ravi agrawal_00010121.jpg
india react trump withdrawl ravi agrawal_00010121.jpg
Now playing
01:46
India standing by Paris climate deal
ABC
Now playing
01:08
Late night mocks Trump's decision
French President Emmanuel Macron arrives at the ancient Greek Theatre of Taormina during the Heads of State and of Government G7 summit, on May 26, 2017 in Sicily.
The leaders of Britain, Canada, France, Germany, Japan, the US and Italy will be joined by representatives of the European Union and the International Monetary Fund (IMF) as well as teams from Ethiopia, Kenya, Niger, Nigeria and Tunisia during the summit from May 26 to 27, 2017. / AFP PHOTO / Tiziana FABI        (Photo credit should read TIZIANA FABI/AFP/Getty Images)
TIZIANA FABI/AFP/AFP/Getty Images
French President Emmanuel Macron arrives at the ancient Greek Theatre of Taormina during the Heads of State and of Government G7 summit, on May 26, 2017 in Sicily. The leaders of Britain, Canada, France, Germany, Japan, the US and Italy will be joined by representatives of the European Union and the International Monetary Fund (IMF) as well as teams from Ethiopia, Kenya, Niger, Nigeria and Tunisia during the summit from May 26 to 27, 2017. / AFP PHOTO / Tiziana FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images)
Now playing
01:01
Macron to US: Make our planet great again
CA GOV Jerry Brown ISO CNNI
CNN
CA GOV Jerry Brown ISO CNNI
Now playing
01:42
California governor: Trump's decision is crazy
CNN/Getty Images
Now playing
02:46
Zakaria: US resigned as leader of free world
WASHINGTON, DC - APRIL 29:  People gather near the U.S. Capitol for the People's Climate Movement before marching to the White House to protest President Donald Trump's enviromental policies April 29, 2017 in Washington, DC. Demonstrators across the country are gathering to demand  a clean energy economy. (Photo by Astrid Riecken/Getty Images)
Astrid Riecken/Getty Images
WASHINGTON, DC - APRIL 29: People gather near the U.S. Capitol for the People's Climate Movement before marching to the White House to protest President Donald Trump's enviromental policies April 29, 2017 in Washington, DC. Demonstrators across the country are gathering to demand a clean energy economy. (Photo by Astrid Riecken/Getty Images)
Now playing
01:18
Thousands protest Trump's climate policies
CNN
Now playing
03:15
Trump Admin guts Obama-era climate regulations

Story highlights

Trump said he represented Pittsburgh, not Paris

The city's mayor noted Pittsburgh swung for Democrats

(CNN) —  

President Donald Trump invoked the people of Pittsburgh to defend his climate change decision Thursday, and the city’s mayor bristled in response.

Explaining his choice to withdraw the US from the Paris climate agreement, Trump said: “I was elected to represent the citizens of Pittsburgh, not Paris.”

Pittsburgh’s Democratic Mayor Bill Peduto, in an interview on CNN’s “The Situation Room with Wolf Blitzer,” said Trump was off-base to point to his choice as benefiting the city – in part because Pittsburgh swung strongly for Hillary Clinton.

“The city of Pittsburgh voted for Hillary Clinton with nearly 80% of the vote,” Peduto said. “He may be talking about all of western Pennsylvania, but it’s a far cry from being Pittsburgh.”

Pittsburgh is in Allegheny County, a blue pocket in the red region of Western Pennsylvania. Allegheny as a whole swung by more than 10 points for Clinton.

Peduto told CNN affiliate WPXI he was “outraged” at Trump’s line.

“Pittsburgh is the example,” Peduto said. “We were that city that China is like today where the smoke was so, filled the air so much, that the streetlights would stay on 24 hours.”

Peduto told CNN he would issue an executive order Friday pledging Pittsburgh would follow through on carbon reduction goals.

It’s up to cities – not the federal government – to ensure carbon emission guidelines are being followed, according to the mayor.

“In cities across America, you’ll see mayors standing up and saying, ‘we got this,’ ” he told AC 360.

When host Anderson Cooper asked him whether he has a message for the President, the mayor said: “What you did was not only bad for the economy of this country, but also weakened America in this world.”

On Twitter after Trump’s speech, Peduto pushed back against the President invoking Pittsburgh.

“The United States joins Syria, Nicaragua & Russia in deciding not to participate with world’s Paris Agreement. It’s now up to cities to lead,” Peduto tweeted.

However, Russia signed on to the Paris agreement, and the US is joined only by Syria, a war-torn nation, and Nicaragua, which argued for a stronger agreement, in opposing the international accord.

Peduto told CNN he was in Paris when the agreement was being forged and also argued that responsibility for the bulk of the US commitments lay with the states, not Washington.

The Pittsburgh area has a noted air pollution issue. The American Lung Association gave Allegheny a failing grade in its most recent “State of the Air” report.