Report Analyzes Economic Benefits of Wetlands

70 billion dollars – that’s how much the world’s wetlands are worth in annual goods and services, according to a report from the World Wildlife Fund. The Great Lakes Radio Consortium’s Rebecca Williams has more:

Transcript

Seventy-billion dollars – that’s how much the world’s wetlands are worth in
annual goods and services, according to a report from the World Wildlife
Fund. The Great Lakes Radio Consortium’s Rebecca Williams has more:


The report says wetlands provide goods and services such as water filtration,
habitat, flood control and food production. The authors analyzed all the
studies that have been done on the economic value of wetlands.


They say billions of dollars are spent each year to drain wetlands for
immediate economic benefits.


Chris Williams is a conservation manager with the World Wildlife Fund. He
says decision-makers don’t always understand the long-term benefits of
wetlands.


“And if you’re, say, an official in a local jurisdiction, you’re thinking,
what is the immediate return of developing this area? There might be tax
revenues, there might be employment benefits, there might be increased
housing. Now those are important, and those should be thrown into the mix.
What we are mainly saying is, fine, but when you’re balancing those short-term returns, balance
them with the long-term value of the resource that
you’re developing.”


Williams says governments might try to restore wetlands when an area has
been paved over. But he says it’s much more expensive to build a wetland
from scratch than to take steps to preserve it.


For the Great Lakes Radio Consortium, I’m Rebecca Williams.

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Environmental Zinc to Reduce Lead Absorption?

Lead is a toxic metal that has been linked to cancer, cardiovascular disease, and neurological impairment, even at low exposures. But a new study suggests that when high levels of another metal are present in the environment, it might reduce the amount of lead absorbed into the bloodstream. The Great Lakes Radio Consortium’s Erika Johnson has more:

Transcript

Lead is a toxic metal that has been linked to cancer, cardiovascular disease, and
neurological impairment, even at low exposures. But a new study suggests that when
high levels of another metal is present in the environment, it might reduce the amount of
lead absorbed into the bloodstream. The Great Lakes Radio Consortium’s Erika Johnson
has more:


The study published in the journal Nature compared lead levels for children living near
industrial and non-industrial sites. Researchers found that children exposed to high levels
of environmental zinc from a nearby smelter absorbed less lead.


Curtis Noonan is an epidemiologist with the Agency for Toxic Substances and Disease
Registry. He co-authored the study.


“But I think it’s important to note also that in our study, high levels of environmental
zinc, while they may have altered the strength of the association between environmental
lead and blood lead, environmental zinc did not ultimately protect children from lead
exposure.”


Noonan says that because children are more susceptible to lead poisoning than adults,
parents should be aware of the risks of lead in the home, even when environmental zinc is
high.


Noonan says that future research should also take into account dietary exposures to zinc,
as well as a person’s overall nutritional status.


For the Great Lakes Radio Consortium, I’m Erika Johnson.

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