Worldwide wildfires increase health risks of bad air
DULUTH -- As huge swathes of Australia’s Outback burn in wildfires spurred by drought, health experts in the U.S. warned Thursday that more heat and more fires means more unhealthy air to breathe.
The Natural Resources Defense Council released a list of 31 states — including Minnesota, Wisconsin and Iowa — that saw air quality degraded in 2011 because of smoke from wildfires, some of them within the state and others far away.
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