Pakistan beekeepers struggle amid climate change and pollution

Pakistan's beekeepers typically move seasonally to spare their charges stifling heat or freezing cold. But weather patterns made unpredictable by climate change -- coupled with some of the worst pollution in the world -- mean beekeepers must move more frequently and travel farther. Three of the country's four honey bee species are endangered. Their loss threatens not just the honey trade but food security in general, with a third of the world's food production dependent on bee pollination, according to the Food and Agriculture Organisation.
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