Tag: temperatures

More Warming Warnings for Wildlife

A new report on global warming forecasts more uncertainty
for North American wildlife. The Great Lakes Radio Consortium’s Chuck Quirmbach reports:

Transcript

A new report on global warming forecasts more uncertainty for North American wildlife. The
Great Lakes Radio Consortium’s Chuck Quirmbach reports:


The Wildlife Society is a group of biologists, habitat managers and educators. The society has
looked over hundreds of peer-reviewed studies from the last few years on global warming and
wildlife. The report says the one degree Fahrenheit increase in average global temperatures over
the past century is already having some effect on species like songbirds.


The Wildlife Society also says a predicted larger increase in global warming will generally push
wildlife and habitats northward. Douglas Inkley of the National Wildlife Federation says this
northward push means migration corridors will need to be expanded.


“Generally on a North-South axis, would be the best direction to put those in, so that the wildlife
are able to move as the climate changes.”


The report also urges more measures to reduce emissions of pollutants that contribute to global
warming. The Wildlife Society will take up formal policy recommendations at its meeting in
March.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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Ice Coverage Greater on Great Lakes

During the past several years, ice coverage on the Lakes has been below normal. Now, for the second year in a row…ice coverage is up:

Transcript

During the past several years, there’s not been as much ice on the Great Lakes. For the second
year in a row, there’s a lot more. The Great Lakes Radio Consortium’s Lester Graham reports:


With a colder winter this year, the Great Lakes are seeing more ice coverage. Ray Assel is a
physical scientist with the Great Lakes Environmental Research Lab. He outlines what he sees on
ice charts from the National Ice Center.


“Ice cover extent similar to the 30-year median ice cover. So, it’s really not that unusual.”


Last year also saw closer to average ice on the Great Lakes. But it seemed extraordinary because
of several mild winters before.


“I think what makes people think it may be unusual is because of the five winters previous to this
last winter, we’ve had below normal ice cover.”


Assel says for those who are looking for clues to global warming, year-to-year changes can vary
widely. Global warming has to be measured in decades.


For the Great Lakes Radio Consortium, this is Lester Graham.

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Fall Foliage Could Be Brilliant

Across the region, the leaves are beginning to change color. One forestry expert says it’s a slow start, but the autumn foliage could become brilliant before the leaves fall this year. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

Across the region, the leaves are beginning to change color. One forestry expert says it’s a slow
start, but the autumn foliage could become brilliant before the leaves fall this year. The Great
Lakes Radio Consortium’s Lester Graham reports:


This fall, most of the region has seen a lot of cooler, overcast days. Burt Barnes is a forestry
professor with the University of Michigan’s School of Natural Resources and Environment. He
says if we’re to see great fall color, we need some more sunshine.


“Well, so far we haven’t had the crisp, sunny, warm days and cold nights that are sometimes
characteristic of fall, which give us the best coloration.”


Barnes says the temperature differential between day and night affects the fall color. With
brighter, warmer days and cool nights, the colors become spectacular. He adds if there’s a sharp
frost, that will cut short the display, but if we get a long frost free period, the colors will continue
to intensify.


For the Great Lakes Radio Consortium, this is Lester Graham.

Hope for Great Lakes Water Levels

Long term climate projections predict conditions will be right to at least temporarily stop the decline in Great Lakes water levels. The Great Lakes Radio Consortium’s Lester Graham reports:

NOAA’s Great Lakes Environmental Research Laboratory is looking at how this winter’s climate might affect the lakes’ water levels.

Transcript

Long-term climate projections predict conditions will be to at least temporarily stop the decline in Great Lakes water levels. The Great Lakes Radio Consortium’s Lester Graham reports.


Lakes Superior, Michigan, Huron, and Erie are all at their lowest levels in 35 years. But, officials at the National Oceanic and Atmospheric Administration -or NOAA– say its climate outlooks for this winter indicate there’ll be a normal amount of precipitation and well below normal temperatures. Cold weather means more ice cover on the lakes, and that prevents some evaporation. Cynthia Sellinger is a hydrologist at NOAA’s Great Lakes Environmental Research Lab.


“So NOAA’s forecast, saying that we’ll have below normal temperatures means that we may have a decent ice cover and we may not have winter evaporation. So, if that happens and if we get a decent snow pack, we may not decline anymore.”


But, the experts say it’s still too early to say whether climate will change enough to reverse the lower water level trend on the Great Lakes. For the Great Lakes Radio Consortium, I’m Lester Graham.