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Framed pictures of French President Emmanuel Macron are displayed by security fencing outside the Scottish Event Campus, the venue for the COP26 U.N. Climate Summit in Glasgow, Scotland, Tuesday, Nov. 2, 2021. The U.N. climate summit in Glasgow gathers leaders from around the world, in Scotland's biggest city, to lay out their vision for addressing the common challenge of global warming. (AP Photo/Scott Heppell)