Tag: earth

Researchers Forecast Region’s Warmer Future

  • The Horicon Marsh in Wisconsin - Researchers say global warming may mean earlier ice breakup and spring runoff, more intense flooding, and lower summer water levels. They say this could spell trouble for wetlands and the species that depend on them. (Photo by Ryan Hagerty, USFWS)

Warmer weather might sound like a welcome reprieve to a lot of people spending early spring in the Midwest. But a team of researchers is warning that in years to come, warming trends in the Great Lakes region could be bad news for business, and for people’s health. The Great Lakes Radio Consortium’s Sarah Hulett reports:

Transcript

Warmer weather might sound like a welcome reprieve to a lot of people spending early spring in the
Midwest. But a team of researchers is warning that in years to come, warming trends in the Great
Lakes region could be bad news for business, and for people’s health. The Great Lakes Radio
Consortium’s Sarah Hulett reports:


Climate change is not a phenomenon that’s unique to the Great Lakes
region. But University of Michigan biologist George Kling says there’s
good reason to look to the Midwestern U.S. for early clues about global warming
elsewhere.


“The middle part of North America, including the Great Lakes region, warms, or has warmed in the
past, at a slightly higher rate than the globe overall. Because we’re right in the center of a continent,
and there’s less buffering impact from the oceans. So coastal areas tend to warm a little bit less, at
a slower rate, continental areas warm at a little bit faster rate.”


Kling and other researchers from the Union of Concerned Scientists, and
the Ecological Society of America, spent the last two years looking at
some of the changes that can already be seen in the region: shorter winters,
higher temperatures, and less ice on the Great Lakes during the winter
months. And Kling warns that extrapolating these trends out over the coming
decades paints an ugly picture:


“These climate changes that we project in our new report will magnify
existing health and environmental problems, and may stress our economy.”


Asthma that’s aggravated every time a heat wave hits, increased competition
for groundwater as dry weather saps wells, and financial losses in communities that once relied on
winter tourism are all distinct possibilities. And the report warns that more visible changes to the
landscape might also
be on the way.


Donald Zak teaches ecology at the University of Michigan. He says during
past periods of warming, trees actually moved north to survive. But Zak
says that kind of tree migration may no longer be possible.


“Ten thousand years ago, when species migrated across the region, there
were very few barriers to migration that we have now placed in the landscape –
like large areas of agriculture, large areas of urban development. Those
will become barriers to migration that didn’t exist following the close of the
last ice age.”


Theories about causes of the warmer weather are well known: heat-trapping
gasses – mostly carbon monoxide – are spewed from coal-fired power plants
and gasoline engines. And continued deforestation and urban sprawl help
ensure mother nature never catches up with processing it all. But the researchers who worked on
the project say solutions are available to slow the effects of global warming. The report makes the
case for raising fuel economy standards for cars and trucks. David Friedman with
the Union of Concerned Scientists says right now, there are more than 30 models of cars on the
market that get more than 30 miles per gallon. The problem, Friedman says, is that those are
mostly compact cars that don’t meet the needs of people who are shopping for pickups, minivans,
and SUVs. Friedman says for those customers, there’s no way for them to use their
wallets to show their desire for more fuel-efficient vehicles.


“When your choice is between 17 and 18 miles per gallon, that’s not a
choice. You’re probably going to choose the vehicle based on the color
and the cup holders, not the fuel economy, when the difference is only one
mile per gallon.”


Some critics say the incremental changes that would result from raising
fuel economy standards would have almost no impact on global warming.
But researchers on the Great Lakes study say resistance from policy makers
and corporate leaders doesn’t have to hamper efforts to slow the effects
of climate change. They say even choices at the household level – like
carpooling and conserving energy can help lessen the damage.


For the Great Lakes Radio Consortium, I’m Sarah Hulett.

RESEARCHERS FORECAST REGION’S WARMER FUTURE (Short Version)

Within three decades, summers in the Great Lakes states might feel more like summers in Kentucky and Oklahoma. That’s according to results of a two-year study conducted by a team of Midwest and Canadian scientists. The Great Lakes Radio Consortium’s Sarah Hulett reports:

Transcript

Within three decades, summers in the Great Lakes states might feel more
like summers in Kentucky and Oklahoma. That’s according to results of a
two-year study conducted by a team of Midwest and Canadian scientists.
The Great Lakes Radio Consortium’s Sarah Hulett reports:


The study was conducted by the Union of Concerned Scientists and the
Ecological Society of America. Researchers looked into trends that have
already shown up in the region – including shorter winters, higher
annual average temperatures, and declines in winter ice on the Great
Lakes. The study projects potential problems for the region. Anglers
might find certain fish no longer thrive in warmer waters, and
communities that rely on winter tourism might find themselves hard hit.


University of Michigan biologist George Kling is the lead author of the
report. He says the findings point to a warming trend unlike anything
the planet’s seen.


“In the next 100 years, we will have the same amount of warming that has
occurred since the last Ice Age – 10-thousand years ago.”


The report outlines approaches for slowing the effects of global
warming. They include reducing greenhouse emissions and investing in
renewable energy.


For the Great Lakes Radio Consortium, I’m Sarah Hulett.

Activist Family Sets Stage for Global Warming

Scientists predict global warming could have a devastating impact on the earth and its inhabitants. But a traveling theater troupe has managed to find something funny about climate change. As the Great Lakes Radio Consortium’s Chris Lehman reports, the group “Human Nature” hopes to spread a message as well:

Transcript

Scientists predict global warming could have a devastating
impact on the earth and its inhabitants. But a traveling theater
troupe has managed to find something funny about climate
change. As The Great Lakes Radio Consortium’s Chris Lehman
reports, the group “Human Nature” hopes to spread a message as
well:


Joyful Simpson’s middle name is Raven. So perhaps it’s only
fitting that she plays a raven in the play, “What’s Funny About
Climate Change?”


“I suppose the raven in mythology is known as a trickster or a
shape shifter. So she’s come in human form to both tease and
cajole and plead with the audience for their understanding and
their awareness.”


(sound of play: “You came, you actually came! I said that if we made a show about global warming sound like
it actually might be funny, that the humans would come. And
here you are…suckers!!”) (laughs)


(fade under)


“What’s Funny About Climate Change” is a three-person
comedy review. The three members are the Simpson family.
They call their theater group “Human Nature”. Their goal is to
raise awareness about the problems caused by global warming.


Jane Lapiner is Joyful’s mother. She says their group uses
theater as a political tool.


“With comedy and theater in general, people can be more
receptive to important ideas, as opposed to a meeting or a
conference.”


That’s why the Simpsons founded the Human Nature theater
group more than 20 years ago. Global warming’s not the only
thing they’ve written about. They’ve performed plays about the
timber industry, wolves, and Pacific salmon.


David Simpson writes most of the material. He says he tries to
inform people and make them laugh.


“I have to say this is an intelligent show…It’s a sophisticated
show, the humor is sophisticated. People are going to learn
something about climate change, they’re gonna laugh, and
they’re gonna think.”


(sound of play, actors singing)


Joyful Simpson says she was fairly involved with her parents’
theater group growing up. But when she left for college, she
started to pursue other ways to communicate her concerns about
the environment. Her journey eventually led her back to her
parents’ theater group.


The current tour is the first time she’s worked with her parents in
about seven years. She says her years away from her family
might have prepared her for her role in “What’s Funny About
Climate Change.”


“I’m not educated about it from a scientific perspective and
actually I think that I embody some of the societal doubt of
whether or not it is a real thing and I’m trying to break out of
that because I think that’s deeply ingrained.”


Joyful is young. She’s in her mid-20’s. And she says it’s crucial
that young people understand environmental issues.


“I have a lot of people in the older generation that I look up to
who are very active in the environmental and the political world
and I see some of that energy in my generation but we are
lacking in that field. And so I’m pushing myself to feel inspired
to take the torch and also trying to push others to understand our
responsibility.”


(more sound of play: Joyful Simpson: “Did you actually think
there was something funny about climate change? It’s the
biggest disaster in the history of the entire civilization and it
really is happening…”)


(fade under)


The Simpson family will be performing on college campuses
across the nation this spring.


For the Great Lakes Radio Consortium, I’m Chris Lehman.

GAUGING MANKIND’S ECOLOGICAL FOOTPRINT

In the wake of the World Summit on Sustainable Development in Johannesburg, South Africa, there’s been a lot of talk about how to balance human needs with the health of the planet. Ecologists have been trying to measure the impact of humans on the environment for a number of years, with some sobering results. The Great Lakes Radio Consortium’s Daniel Grossman went to the New York Botanical Garden recently to gauge mankind’s ecological footprint:

Transcript

In the wake of the World Summit on Sustainable Development in Johannesburg, South
Africa, there’s been a lot of talk about how to balance human needs with the health of the
planet. Ecologists have been trying to measure the impact of humans on the environment
for a number of years, with some sobering results. The Great Lake Radio Consortium’s Daniel Grossman went to the New
York Botanical Garden recently to gauge mankind’s ecological footprint.


[Rain forest sounds, misters, tinkling of water, rain falling on leaves]


To get a good sense of the impact humans are having on earth, you could travel for weeks
on intercontinental plane flights, river boats and desert jeeps. Or, as Columbia University
biologist, Stuart Pimm suggested, visit a botanical garden. There, under the glass and
ironwork of a conservatory, Pimm says you can see a resource that humans are
over-using – Earth’s most important resource, its plant-life.


“We’re sitting in the rain forest here at the New York Botanical Society. And it’s a riot of
green.”


Professor Pimm says here beneath the misters in the Tropical Rain Forest Gallery is a
good place to start a whirlwind tour of Earth’s greenery. The air is heavy with moisture
and sweet-smelling.


“Rain forests are some of the most productive parts of the planet. They grow extremely
quickly and they are therefore generating a lot of biological production.”


What Pimm calls biological production most of us know as plant growth. Biologists say
all this green growth in tropical forests and elsewhere on Earth is the foundation upon
which all life rests.


“Everything in our lives is dependent upon biological productivity – everything that we
eat, everything that our domestic animals eat.”


And everything that every other animal eats as well. In a recent book, Pimm painstakingly
tallies up how much biological productivity we use. He starts with the rain forest. In the
last 50 years, loggers and settlers have cut down 3 million square miles of lush tropical
forests. Much was cut down for subsistence agriculture, a purpose Pimm says it serves
poorly.


“Although the tropical forest looks rich and productive, it is a very special place. And
when you chop that forest down the areas that replace it often become very, very much
less productive.”


[Sound of walking around conservatory]


Pimm speaks of the toll on greenery of cities and roads and of land converted to farming
in temperate regions such as the U.S. Midwest. Then, trekking along the botanical
garden’s gravel paths, he leaves behind the tropical mists and steps into the dry heat of a
Southwestern desert. Deserts and other dry lands are not very productive, but they
account for a substantial fraction of Earth’s land surface. Most of it is grazed by flocks of
sheep, goats, camels and cattle, often causing severe damage to vegetation. When these
uses are added to the other impacts of humanity on earth’s bounty, the results are
surprisingly large.


“What silence has shown is that we are taking 2/5ths of the biological production on land,
a third from the oceans. And that of the world’s fresh water supply, we’re taking half.”


[Fade out sound of conservatory. Fade up sound of Texas frogs.]


[Sound of plane engines]


Frogs and toads croak out a spring mating ritual in a concrete drainage ditch. Nearby, a
pilot practices maneuvers in a small plane occasionally drowning out the amphibian
serenade. Living in culverts, sharing the night with droning engines, these wild animals
are never completely free of human influences. From his Stanford University office,
Professor Peter Vitousek says wherever you look, the din of human activities is
interrupting and crowding out other species. Vitousek made one of the first attempts to
tally the impact of people on plant productivity in 1985.


[Frogs fade out in time for Vitousek’s act]


“The message to me was that we are already having a huge impact on all the other species
because of our use of the production of Earth and the land surface of Earth. That’s not
something that our models predict for some time in the future or something that we’re
guessing at on the basis of fairly weak information. It’s something that we’re clearly
doing now. That’s already happening.”


Many ecologists say this conclusion is beyond doubt. What they can’t say is whether
human domination of so much of nature’s output is good or bad. University of Minnesota
Professor David Tilman says as a member of the human race himself, he appreciates the
comforts in clothing, shelter and food our lifestyles buy us. And he acknowledges that the
survival of our own species is probably not imperiled – at least for the moment – by the
destruction of others. Still, he wonders if someday we’ll regret today’s resource intensive
practices.


“I think the more relevant question to me is, ‘Are we doing this wisely?’ ‘Are we wisely
appropriating the resources of the world?’ So, my concern is that we live in a balanced
way – a way that is sustainable through generations – that we leave our children and
grandchildren the same kind of world that we have.”


An expert on the impacts of agriculture, Tilman says we’re using up more resources than
can be replaced. He says if we don’t grapple with these important issues now, by the time
the human population reaches eight to ten billion or so people later this century, it might
be too difficult for us to do enough to save the planet’s life as we know it today.


For the Great Lakes Radio Consortium, I’m Daniel Grossman.

Appreciating the Night Sky


The invention of electric lights at the end of the 19th Century ended the ancient tyranny of darkness over our lives. Turning on the lights at night has allowed us to make every hour count. But while nighttime lighting has given us unprecedented security and uncountable opportunities, we may be reaching the point where we have too much of a good thing. The Great Lakes Radio Consortium’s Ed Janus reports on two people involved in an international effort to turn the lights down a little and take back the night:

Year 2000 Promises

In the wake of the Earth Summit in 1992, it was anticipated
that by the year 2000 we would be a lot closer to solving many of our
environmental problems. But as the millennium approaches, Great
Lakes Radio Consortium commentator Suzanne Elton has realized that we
aren’t any closer to solutions than we were ten years ago: