The leaders of the three greatest producers of carbon emissions — the US, China and India — are staying away from the COP30 summit, which officially starts on Monday. The UN says it's now "virtually impossible" to achieve the international target of limiting global warming to 1.5C. Also: South Africa says it's received distress calls from 17 citizens lured into fighting for Russia in the war in Ukraine; and China's astronauts say they've held the first ever barbecue in space.

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