Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Cities to Step Up at UN to Push Climate Fight, Sustainable Development Reuters UNITED NATIONS - As some world leaders question whether the world is facing a climate emergency, more than a dozen cities are stepping up to tackle global warming and sustainable development and will next week pledge to report their progress to the United Nations. Sixteen cities will commit to implementing global goals to end poverty, inequality and other challenges by 2030 during the annual gathering of world leaders at the United Nations. They will sign a voluntary declaration drafted by New York City. The set of 17 Sustainable Development Goals, unanimously approved by the 193 U.N. member nations in 2015, is a wide-ranging "to-do" list tackling such issues as conflict, hunger, land degradation, gender equality and climate change. "We are living in a time when national governments are abdicating their responsibility on urgent issues. That is why cities are stepping up," said New York City's International Affairs Commissioner Penny Abeywardena. U.S. President Donald Trump, who has described global warming as a hoax, dealt a blow to U.N.-led efforts to fight climate change when he pulled the United States from the landmark 2015 Paris climate accord. Brazil's President Jair Bolsonaro has also expressed doubts as to whether climate change is man-made and is ambivalent about the Paris accord, though he walked back a campaign pledge to quit the pact. .