French President Emmanuel Macron delivers a speech during the 'Tech for Planet' event at the 'Station F' start-up campus ahead of the One Planet Summit in Paris on December 11, 2017. / AFP PHOTO / POOL / PHILIPPE WOJAZER (Photo credit should read PHILIPPE WOJAZER/AFP/Getty Images)
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Leaders gather on Paris Accord anniversary
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On the two-year anniversary of the Paris Accord, world leaders are gathering in the French capital for the "One Planet" summit to discuss stepping up efforts against global warming. CNN's Melissa Bell has more.
02:06 - Source: CNN
Paris Accord 11 videos
French President Emmanuel Macron delivers a speech during the 'Tech for Planet' event at the 'Station F' start-up campus ahead of the One Planet Summit in Paris on December 11, 2017. / AFP PHOTO / POOL / PHILIPPE WOJAZER (Photo credit should read PHILIPPE WOJAZER/AFP/Getty Images)
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Leaders gather on Paris Accord anniversary
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Trump withdraws US from Paris climate accord
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WASHINGTON, DC - JUNE 01: U.S. President Donald Trump arrives to announce his decision regarding the United States' participation in the Paris climate agreement in the Rose Garden at the White House June 1, 2017 in Washington, DC.
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Fact-checking Trump's Paris accord speech
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WASHINGTON, DC - JUNE 01: U.S. President Donald Trump arrives to announce his decision to withdraw the United States from 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)
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WH feels the heat over Comey, Paris accord exit
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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)
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Trump left, and this is what the world said
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US President Donald Trump departs after he announced 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. "As of today, the United States will cease all implementation of the non-binding Paris accord and the draconian financial and economic burdens the agreement imposes on our country," Trump said. / AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
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CEOs to Trump: You're wrong on climate change
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Fareed: No constraints means dirty energy
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WASHINGTON, DC - MARCH 31: U.S. President Donald Trump makes an announcement during a meeting with the National Association of Manufacturers in the Roosevelt Room of the White House March 31, 2017 in Washington, DC. President Trump signed two executive orders today that aim to boost U.S. manufacturing by addressing foreign trade. (Photo by Olivier Douliery-Pool/Getty Images)
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What happens if U.S. pulls out of Paris climate accord?
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