New Zealand sea sponge populations 'dying by the millions' due to climate change

New Zealand is seeing its worst-ever mass bleaching of important sea sponges. (CNN) New Zealand is seeing its worst-ever mass bleaching of important sea sponges. (CNN)

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Shift in war's front seen as grain leaves Ukraine, power plant hit

Four more ships carrying agricultural cargo held up by the war in Ukraine received authorization Sunday to leave the country's Black Sea coast as analysts warned that Russia was moving troops and equipment in the direction of the ports to stave off a Ukrainian counteroffensive.

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