If you have shade trees on the south or west sides of your home,
those trees reduce your electricity use by five percent (Photo by Jessi Ziegler)
Shade trees can save you
money on your energy bill. Now,
for the first time, researchers
have figured out just how much.
Rebecca Williams has more:
Transcript
Shade trees can save you
money on your energy bill. Now,
for the first time, researchers
have figured out just how much.
Rebecca Williams has more:
Economists looked at utility bills of homes in California on the hottest days
of the year.
Geoffrey Donovan is with the Forest Service Research Station.
He says, if you have shade trees on the south or west sides of your home,
those trees reduce your electricity use by five percent.
“So putting a tree somewhere it’s going to cast shadows at the warmest time
of the day. The other thing you want to think about is winter sunshine.
Particularly on the south side of a house you may want to put a deciduous
tree as opposed to an evergreen tree so in wintertime you’ll get some
sunshine through that.”
Donovan says how close you put those trees to your house matters too. For
the most energy savings, shade trees should be within 40 to 60 feet of your
home.
Most cities discourage you
from throwing your Christmas tree
away. Rebecca Williams takes a look
at what you can do with your tree:
Transcript
Most cities discourage you
from throwing your Christmas tree
away. Rebecca Williams takes a look
at what you can do with your tree:
In a lot of cities you can drop your tree off, or a city truck will come and
pick it up. Then they’ll run it through a big chipper and make mulch. Cities
use the mulch for parks or zoos. And sometimes you can buy some of that
mulch for your own yard.
Bryan Weinert is a solid waste coordinator in Ann Arbor, Michigan. He
says you’ve got to make sure you take all the ornaments and tinsel off the
tree before you put it at the curb.
“You know that compromises the quality of our finished product and in
some cases can actually damage our grinding equipment.”
Other places use the trees to create fish habitat. And this year, when the
Vatican is done with its 108 foot tall Christmas tree, it’ll use it to make
wooden toys.
A recent study showed climate change was resulting in
stronger hurricanes, and some years, Florida, with all of its
orange groves, has been devastated by those storms. (Photo courtesy of the USDA)
Florida’s orange producers have
escaped any devastating hurricanes so far
this season. But in recent years, the big
storms have been worse. They’ve contributed
to a 40% decline in orange crops
in the last five years. Julie Grant reports
that has some companies looking elsewhere
for oranges:
Transcript
Florida’s orange producers have
escaped any devastating hurricanes so far
this season. But in recent years, the big
storms have been worse. They’ve contributed
to a 40% decline in orange crops
in the last five years. Julie Grant reports
that has some companies looking elsewhere
for oranges:
Matthias Guentert is president of Symrise. The company
makes flavorings for beverages and processed foods.
When Symrise was deciding where to open its new citrus
headquarters – Guentert says they considered Florida – but
then chose to open in Brazil instead. One reason: Florida’s
increasingly unpredictable weather.
“Weather has been affecting people in Florida and in the
south of the US in the last years. And when it comes to
making a decision like this, it does play into it.”
A recent study showed climate change was resulting in
stronger hurricanes, and some years, Florida, with all of its
orange groves, has been devastated by those storms.
If you find a wooden apple like this one in a Vermont orchard, you can turn it in for a free iPod (Photo courtesy of the Vermont Department of Tourism and Marketing)
An apple tree at the Shelburne Orchards in Vermont (Photo by Megan J. Humphrey)
Fall is in full swing, and in the
northern states, what better way to appreciate
the time of year than to go apple picking?
It’s the fall thing to do, right? Well, not
for everyone. Lulu Miller reports:
Transcript
Fall is in full swing, and in the
northern states, what better way to appreciate
the time of year than to go apple picking?
It’s the fall thing to do, right? Well, not
for everyone. Lulu Miller reports:
“Ooh that’s perfect! Perfect fall day. Little Chill in the air.”
That’s orchard owner Nick Cowles and we’re here with him at his orchard.
“Beautiful apple!”
Shelburne Orchards. Near Burlington Vermont.
“Looks out over Lake Champlain.”
And to hear him to tell it, an afternoon spent apple picking is pretty much as
good as it gets.
“Yeah. There’s something about gathering food with your family that’s primal
almost. I see people show up in their cars. The dad, the face is a little pinched. He
had to get the kids in the car. They didn’t really wanna come. His whole life is
stress. And then by the time, the difference in the face when he’s leavin’, it’s just
a whole different face.”
Everyone’s dream weekend, right?
Well. Not exactly. There is one group of people who just aren’t all that thrilled
about fall leaves and apple picking.
“Well yeah. The demographics of Vermont are a little scary right now. We have
the least number of folks in there 20s in the country.”
That’s Bruce Hyde, Commissioner of Tourism for the state of Vermont. He says
the 20-somethings are missing.
“I can understand after going to one of the great colleges we have in a rural state,
that a lot of folks wanna go and experience the big cities and sow their oats.”
And so, as the guy in charge of tourism, Bruce has a mission.
“We’re really trying to attract more young people to the state of Vermont.”
And here’s what he’s up against.
Lulu Miller: “Just wondering if you guys have any plans to go apple picking this
season?”
Student: “Not really. I’m not really into apples.”
Miller: “No?”
Student: “My age? It’s kind of about the debauchery. Sleeping in on Saturdays.
Not going apple picking with the folks. You know?”
I’m talking to college students in a park near New York University.
Student: “It’s not something that I would hear my friends being like, ‘can’t hang
out on Saturday! Going apple picking!’ I just can’t imagine that coming out of
their mouths.”
So what’s a commissioner of tourism to do?
“We were trying to figure out, what’s a way to get more young people into the
orchards? So we came up with an idea. A cute little idea.”
If apples just weren’t enticing enough to lure people to Vermont, Comissioner
Hyde thought, maybe there’s something else they’d prefer to find in the trees.
Like…
“An iPod!”
That’s right in the apple trees of Vermont.
“Macintosh. Courtlans. Red delicious.”
You can find iPods.
“Nano’s. A couple of touch’s. And the just the classic iPod.”
Now they’re not actually dangling from the trees.
“What we did is we made up wooden apples. They have the state seal on them.”
And if you find that, you can turn it and get an ipod.
“Yeah. And it really has brought a lot of people into the orchards. We haven’t
done any kinda survey. But the response I’ve heard from orchards is they’ve
never seen so few apples left on the trees.”
Orchard owner Nick Cowles agrees.
“Lotta people know about it, have heard about it. ‘Come on mom, lets go look
for the iPod!’ It’s a great program. It does what it set out to do. It really helps the
orchards. They’ve been very smart to do this.”
So what do the college students think?
Student: (laughs) “They’res gonna be iPods with apples!? No way!”
Miller: “Would that make you go? Would it up the ante at all?”
Student: “It absolutely does. I would definitely go apple picking if there was a
chance I could stumble across an iPod.”
But not all of them feel that way, in fact many of them pointed out that luring
people with iPods sounds so wrong. Kinda grinds against the notion of getting
people out into nature.
“Does that feel wrong? No.”
Orchard owner Nick Cowles.
“In my estimation, anything that brings families together, outside, doing
something like that – it doesn’t get any better than that. They’re out in the
orchard, runnin’ around, picking apples – that’s healthy. They’re doin’ it as a
family.”
Jennifer Pierce and David Wilkins stand in front of a ponderosa pine forest just outside the city of Boise. They hope to study the relationship between fire and climate here and recreate a snapshot of ancient climate. They are both teach at Boise State University's Geosciences Department. (Photo by Sadie Babits)
Twenty years ago this year, the
country watched its oldest national park
go up in flames. Looking back, scientists
believe the 1988 fires of Yellowstone
National Park were the signal fire of
climate change. Researchers have been
working ever since to understand this
relationship between climate and wildfire.
Sadie Babits reports on two scientists
searching for clues to ancient climates,
using trees as their guide:
Transcript
Twenty years ago this year, the
country watched its oldest national park
go up in flames. Looking back, scientists
believe the 1988 fires of Yellowstone
National Park were the signal fire of
climate change. Researchers have been
working ever since to understand this
relationship between climate and wildfire.
Sadie Babits reports on two scientists
searching for clues to ancient climates,
using trees as their guide:
Jennifer Pierce wears work boots as she plows down a steep slope in a
ponderosa pine forest.
(sound of walking, twigs breaking)
Her blonde hair is tucked up under her Boise State bronco cap, but it keeps
sneaking out. She has to keep brushing it back under. She and her
colleague David Wilkins are professors who work for Boise State
University’s Geosciences Department. They’re in the middle of tall pines in
a forest just outside of Boise, Idaho. Suddenly she’s crashing across the
brambles and heads for this tree.
“Oh that’s a great one! Wow! Sweet!”
She drops to her knees and shows me how this tree has been scarred by
fire.
“You see this little V shaped cat face here at the bottom of the tree that’s
blackened? So during a fire when the bark of the tree gets damaged that
preserves a record of the fire as a scar on the tree.”
Pierce says since the tree has annual growth rings, she can tell when the
tree got burned.
It’s one way Pierce and Wilkins reconstruct the fire history of this forest.
It’s a key to understanding how climate has affected forest fires in the past.
“I think as we move into a likely warmer and drier future, it’s going to be
increasingly important to understand the relationship between climate and
fire.”
She says climate is the primary control for wildfires. As the West warms,
there’s less control. Recently, that’s meant a lot more wildfires.
(popping sound) “There you go!” (sound of a drill bit going through the tree
with sound of birds and forest)
David Wilkins is twisting an auger into the tree.
“It’s a good upper body workout!” (laughs)
It’s a way to take a sample of the rings of this tree. Within a half-minute,
Wilkins’ auger is stuck. The tree is rotten inside. An eight-inch core is all he
gets.
(sound of drill bit coming out of the tree)
Jennifer Pierce takes a look at this sample Wilkins twisted out. The rings –
some light, some dark – reveal just how the tree has responded to moisture
and temperature.
“If you have a tree that kind of is at the edge of its comfort zone so to
speak, it will be more of a sensitive recorder of those environmental
stresses. See this one looks pretty good.”
Tree rings aren’t the only clue these scientists use to reconstruct historic
climates.
(scraping sound)
“I didn’t bring my big shovel. I kind of feel naked without it.”
Pierce scrapes away dirt and she finds bits of charcoal. She can sometimes
use charcoal for radio carbon dating. But these won’t do.
“But, um, I wouldn’t use them for dating because you want to make sure
that the charcoal is stratographicly in place and that you haven’t had
critters burrowing and mixing things up.”
Charcoal can be dated much further back than the tree rings. It helps
Pierce and Wilkins understand what happened here thousands of years
ago. With samples from other scientists, they’ll get a snapshot of ancient
climate and how it affects wildfire.
And possibly determine what climate change will mean for forests in the
future.
Many coffee growers in Latin America are now replanting the shade trees. (Source: MarkSweep at Wikimedia Commons)
Songbirds on their way south might
find more trees at coffee plantations. Lester
Graham reports there’s a shift in thinking by
coffee growers. And a new study might encourage
more farmers to plant shade trees:
Transcript
Songbirds on their way south might
find more trees at coffee plantations. Lester
Graham reports there’s a shift in thinking by
coffee growers. And a new study might encourage
more farmers to plant shade trees:
A few decades ago, coffee growers in Latin America were given incentives to clear the
shade trees on their plantations. More sun equals more coffee beans. They also found
more sun meant more weeds. So they had to spray expensive herbicides.
Now a new study published in BioScience shows cutting down those shade trees has
also left the coffee plants more exposed to damage from bad weather. Ivette Perfecto
at the University of Michigan is one of the authors.
“The vulnerability of the farms are much higher if they eliminate the shade. The shade
trees provide like a buffer against extremes.”
Many coffee growers in Latin America are now replanting the shade trees. The added
benefit is the trees provide habitat for wildlife, including those migrating birds that spend
their summers here and travel south to that region.
For The Environment Report, this is Lester Graham.
Active flame front of the Zaca Fire, the second largest fire on record in California. (U.S. Forest Service photo by John Newman)
New technology might help the US
Forest Service detect fires in remote areas
more quickly. Lester Graham reports:
Transcript
New technology might help the US
Forest Service detect fires in remote areas
more quickly. Lester Graham reports:
A chemical reaction makes batteries generate electricity. There’s a ph difference
between trees and the soil around them. MIT researchers say they can use that
chemical difference to generate a tiny amount of electricity.
Andreas Mershin and his MIT colleagues say it’s just enough power to trickle charge
sensors that read temperature and humidity. Then they send that data to the U.S.
Forest Service so it can determine the risk of fire.
“The advantage comes from the fact you no longer need to be going to very remote
locations and changing batteries all the time.”
The Forest Service will be testing these sensors next spring. They cost about one-tenth
of other sensors that need batteries. So it could mean more sensors in remote
locations. That way the Forest Service could have a better idea of if and when it needs
to put fire equipment near hot, dry areas.
For The Environment Report, this is Lester Graham.
Researchers at the University of Delaware have found that planting trees around poultry farms has many benefits (Photo courtesy of the USDA)
As suburbs are built closer to
farms, there are sometimes complaints
about the odors. Researchers are now
working to smooth things out between
farmers and their new neighbors. Jessi
Ziegler has the story on one
of the simple solutions they found:
Transcript
As suburbs are built closer to
farms, there are sometimes complaints
about the odors. Researchers are now
working to smooth things out between
farmers and their new neighbors. Jessi
Ziegler has the story on one
of the simple solutions they found:
If you’ve ever driven by a chicken farm, you know the
smell can get pretty bad.
So, imagine living by one, and smelling it every single day.
Well, researchers may have come up with a solution –
trees.
Planting a few rows of trees around a farm can do all sorts
of good.
They capture dust and ammonia. And they block noise
and odor.
Also, they make the farm look a lot prettier. Which,
researcher George Malone says, can make a big difference.
“There’s been other studies to indicate that attractive
farms, statistically, have less odor than unattractive farms.
Perception is reality of what we deal with.”
And the perception is, the better you think a farm looks,
the better you think it smells.
For The Environment Report, this is Jessi Ziegler.
Chet Meyers surveys the Cedar Creek Ecosystem Science Reserve for Red-headed Woodpeckers. He's heading up a study to identify the bird's preferred habitat, and to encourage landowners to let dead and dying trees stand, as woodpecker homes. (Photo by Stephanie Hemphill)
This red-headed woodpecker has just stored an acorn for use in the coming winter. The word for
this is cache. (Photo by Jim Williams)
Red-headed woodpeckers used to
be just about everywhere east of the Rocky
Mountains. But these days the number of
red-headed woodpeckers is about half of
what it was fifty years ago. Stephanie
Hemphill reports volunteers
are working on a new project to get people
to help red-headed woodpeckers. They’re
encouraging landowners to let dead or dying
trees stand rather than cut them down:
Transcript
Red-headed woodpeckers used to
be just about everywhere east of the Rocky
Mountains. But these days the number of
red-headed woodpeckers is about half of
what it was fifty years ago. Stephanie
Hemphill reports volunteers
are working on a new project to get people
to help red-headed woodpeckers. They’re
encouraging landowners to let dead or dying
trees stand rather than cut them down:
You can’t miss Red-headed Woodpeckers. They have long beaks,
bright red heads and snowy white breasts. And if you go to the right
place, you can find a lot of them.
“Somebody told me that there was Red-headed Woodpeckers up
here, so I walked five minutes, and there was a Red-headed
Woodpecker, and it flew into a hole in a tree, and I says, ‘wow, this is
easy.’”
Lance Nelson first visited the Cedar Creek Ecosystem Science
Reserve about a year ago.
“And then I came up this year and found 8 nests. But the young
make a lot of chattering, so you can usually tell where the nest is.”
Today they’re not hammering on trees – the sound most of us
associate with woodpeckers – but they’re doing plenty of chattering.
This reserve in southern Minnesota looks a lot like how much of the
Midwest used to look.
There are clumps of big oak trees here, separated by open areas of
native grasses, shrubs and wildflowers. The biologists call it an oak
savannah.
And there are Red-headed Woodpeckers everywhere – about fifty of
them on this 500-acre patch of ground.
“There’s a red-headed, and he’s got a baby with him. God, they’re
beautiful. They are so beautiful.”
That’s Chet Meyers. After a career as a college professor, he’s now
in charge of an effort to make more places where Red-headed
Woodpeckers can build their nests and raise their young.
If they can figure out exactly what the woodpeckers like so much
about this place, maybe they can come close to reproducing the
same conditions other places.
Chet Meyers is marking every tree where the woodpeckers have
nested.
“See these two trees to the left, go to the right-most one, it forks, and
there’s a broken-off snag up there, looks like a ‘Y’. That’s where the
babies were sticking their head out a couple weeks ago. It was really
cute.”
Once the trees are marked, the group will catalog exact descriptions
of each tree. They’re hoping to come up with a profile of the perfect
home for Red-headed Woodpeckers.
“And we’re going to measure the diameter of the tree, how high the
nest cavity is, the species of the tree, is it alive or is it dead, so we
can get some data on what seems to be the preferred habitat.”
Once they’re pretty sure they know what the woodpeckers like, they’ll
reach out to land owners. They’ll to try to get them to leave dead and
dying trees standing.
That could work on old abandoned farms, where there are trees and
open spaces. Or in cemeteries. Or around golf courses.
“If our theory – see, this is all theory – if our theory is correct, the golf
course replicates an oak savannah and there should be birds there.
So, that’s what we’re hoping.”
And Meyers says helping woodpeckers means helping other wildlife
too.
“The woodpecker is called a primary nester, it digs the cavity. But
flying squirrels, mice, snakes, bluebirds, tree swallows – there are lots
of other animals that are secondary nesters. They can’t drill the hole.
But they live there. So what we’re trying to do is preserve the habitat
so the woodpeckers drill the hole and when they leave, something
else will come in and live in it.”
The researchers think if you have dead or dying tree, that could be a
home for a Red-headed Woodpecker. But usually homeowners are
worried the tree could fall and damage something, Meyers says you
can cut off the top and some of the bigger branches and leave the
rest of the tree standing. They think the red-headed woodpecker will
be just as happy.
For The Environment Report, I’m Stephanie Hemphill.
Music teacher Maura Volante leading students on her "Woods Walk Singing", a singing hike
(Photo by Karen Kelly)
Music teacher Maura Volante leading students on her "Woods Walk Singing", a singing hike
(Photo by Karen Kelly)
In many cultures, people sing as
they work or as they travel. But in North
America, most of us aren’t comfortable
singing out loud in public. Karen Kelly
reports on a music teacher who’s trying
to change that – by taking her students
into the woods:
Transcript
In many cultures, people sing as
they work or as they travel. But in North
America, most of us aren’t comfortable
singing out loud in public. Karen Kelly
reports on a music teacher who’s trying
to change that – by taking her students
into the woods:
“Ooh, ah. Ooh ah. Here’s another part: aay-oh”
Maura Volante is leading a troupe of six students through a path in the forest.
It’s rainy, buggy and muddy. But everyone quickly gets into a groove – both with their
feet and with their voice.
(sound of walking song)
“There’s lots to look at all the time: the green and the shadows, the lake, the sky and all
the different vegetation. And when I’m feeling relaxed and I’m in my body and I’m
walking along and I’m in nature like that, it just makes me want to sing. It inspires me to
let my voice out.”
Volante teaches singing in Ottawa, Canada. For her, people don’t need a good voice to be
able to sing. Instead, she says singing just comes naturally to humans, like breathing and
walking. Which is why she tries to get people outside where they can experiment and
make mistakes.
“It’s kind of like recreational softball. It doesn’t matter if someone sucks at it. They can
still play. It’s for fun.”
(sound of more singing)
We spend about two hours hiking around the heavily-wooded Mud Lake.
I did some research to see if I could find any other organized singing hikes. I found one
at a bible camp in Virginia. And there’s one at a kibbutz in Israel. And, at Yellowstone
National Park? They recommend singing loudly – or shouting – to scare the bears away.
Of course, lots of people like to sing when they hike. On this walk, Kathy Woodgold
says she sings differently when she’s walking in nature.
“When we’re in the woods, it brings sort of a primitive spirit. Like, I’m thinking, let’s
pretend we’re not civilized, instincts, and so on. And maybe that opens up a creative
spirit. It frees us to sing random notes, instead of having to feel like we have to do a
predefined melody.”
This isn’t really a conservationist group. But teacher Maura Volante says, in some small
way, doing this helps the planet.
“I think there is a benefit to the environment for people to sing more because that gets
them to appreciate nature more and appreciating nature helps you be committed to
preserving it.”
(sound of singing “O Canada”)
The small group stops at a dock overlooking Mud Lake for their only performance of the
day. The audience? Ducks, frogs and mosquitoes.
If you have shade trees on the south or west sides of your home, those trees reduce your electricity use by five percent (Photo by Jessi Ziegler)
