China has made major progress on air pollution. Wuhan protests show there’s still a long way to go

INNER MONGOLIA, CHINA - NOVEMBER 04: Smoke billows from a large steel plant as a Chinese labourer works at an unauthorized steel factory, foreground, on November 4, 2016 in Inner Mongolia, China. To meet China's targets to slash emissions of carbon dioxide, authorities are pushing to shut down privately owned steel, coal, and other high-polluting factories scattered across rural areas. In many cases, factory owners say they pay informal 'fines' to local inspectors and then re-open. The enforcement comes as the future of U.S. support for the 2015 Paris Agreement is in question, leaving China poised as an unlikely leader in the international effort against climate change. U.S. president-elect Donald Trump has sent mixed signals about whether he will withdraw the U.S. from commitments to curb greenhouse gases that, according to scientists, are causing the earth's temperature to rise. Trump once declared that the concept of global warming was "created" by China in order to hurt U.S. manufacturing. China's leadership has stated that any change in U.S. climate policy will not affect its commitment to implement the climate action plan. While the world's biggest polluter, China is also a global leader in establishing renewable energy sources such as wind and solar power. (Photo by Kevin Frayer/Getty Images)

BEIJING, CHINA - APRIL 09: A general view of a Australian flag is seen during a welcome ceremony for Australia's Prime Minister Julia Gillard outside the Great Hall of the People on April 9, 2013 in Beijing, China. At the invitation of Chinese Premier Li Keqiang, Australian Prime Minister Julia Gillard will pay an official visit to China after the Boao Forum for Asia Annual Conference 2013. (Photo by Feng Li/Getty Images)

Taliban spokesperson frozen funds robertson ctw vpx _00004417.png

China's internet lit up when a photo of billionaire actress Zhao Wei surfaced, allegedly showing her at a mobile phone shop, according to local media.  It was only a few weeks ago when Zhao was mysteriously erased from the internet, censored by the Chinese government.  CNN's Ivan Watson reports.

British Prime Minister Boris Johnson addresses the 76th session UN General Assembly on September 22, 2021, in New York. (Photo by EDUARDO MUNOZ / various sources / AFP) (Photo by EDUARDO MUNOZ/AFP via Getty Images)

President Joe Biden spoke for the first time on September 22 with French President Emmanuel Macron after a major diplomatic crisis shook the two longtime allies over a deal to equip Australia with nuclear-powered submarines. CNN's Cyril Vanier reports from Paris.

Handout photo released by the Brazilian Senate of Marcelo Antonio Cartaxo Queiroga Lopes during a Social Affairs Commission public hearing in Brasilia on August 12, 2015. - Queiroga was named on March 15, 2021 as Brazils new Health Minister, replacing Eduardo Pazuello. (Photo by Marcos Oliveira / BRAZILIAN SENATE PRESS OFFICE / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT AFP PHOTO / BRAZILIAN SENATE / MARCOS OLIVEIRA - NO MARKETING NO ADVERTISING CAMPAIGNS -DISTRIBUTED AS A SERVICE TO CLIENTS (Photo by MARCOS OLIVEIRA/BRAZILIAN SENATE PRESS OFFICE/AFP via Getty Images)

Afghan refugees fleeing their homeland are making the treacherous journey to Turkey after the Taliban took control of Afghanistan. CNN's Arwa Damon speaks to several Afghans who have attempted-- but failed -- to cross into Turkey.