Pollution in China: Man-made and visible from space

“PM2.5” seems an odd and wonky term for the blogosphere to take up, but that is precisely what has happened in China in recent weeks. It refers to the smallest solid particles in the atmosphere—those less than 2.5 microns across.

Water monitoring system aids Kenyan herders

Geoffrey Kamadi

NAIROBI, Kenya (AlertNet) – Satellite technology is coming to the aid of pastoralists in drought-stricken Kenya, with the expansion of a water monitoring system that aims to reduce livestock loss.

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