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On UN Day 2022 let’s talk about the UN Sustainable Goals: Facts and figures

Officially celebrated as “UN Day”, the 24th of October marks the anniversary of the entry into force in 1945 of the UN Charter, the founding document that brought the United Nations into being. As the heart of the UN’s actions, the Sustainable Development Goals (SDGs) focus global efforts and attention on 17 specifically pressing issues, including poverty, inequality, climate change, war, injustice, etc. Where do we stand?

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Satellites can now measure the thickness of Arctic sea ice in the summer months

Until now, satellites could only measure sea ice thickness between October and March, when the ice and snow are cold and dry. In the warmer months, melt ponds on top of the ice floes confused the instruments, which could not be used to distinguish between melted ice on an ice floe and the ocean. However, thanks to a new study involving UCL researchers, an algorithm was trained on thousands of simulations of satellite data to reliably distinguish between melt ponds and the ocean.

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