Hundreds of pro-Ukraine demonstrators in Alaska have been showing their unhappiness about the absence of the Ukrainian President Volodymyr Zelensky at the summit in their state between Presidents Trump and Putin. Mr Trump is travelling to Alaska for the meeting that could prove decisive for the future of Ukraine. Before departing Washington, he posted the words "HIGH STAKES!!! on social media. Also: Two years of negotiations to develop a global plastic pollution treaty have ended in failure, and the robot athletes going for gold in China.

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