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Southern hemisphere also seeing climate disruption

A poleward shift of the subtropical dry zone may be displacing rainfall in parts of the southern hemisphere.

Rainfall being displaced in critical areas

By Summit Voice

FRISCO — As the northern hemisphere grapples with the impacts of the melting polar ice cap, the southern hemisphere is facing a different climate change issue.

A  poleward expansion of the subtropical dry-zone is probably responsible for a significant decline in autumn rainfall over southeastern Australia and may be affecting seasonal precipitation in other areas.

Since most of the world’s landmass and population is in the northern hemisphere, climate change impacts have been recognized and studied more extensively. Much of the southern hemisphere is open ocean, so there’s less good data to work with, but some research has already  suggested a southward shift in the storm tracks and weather systems during the late 20th century. Continue reading

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