The Giving Shade Tree

  • 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.

For The Environment Report, I’m Rebecca Williams.

Related Links

Commercial Geothermal Up and Running

  • Several geothermal power plants at The Geysers (Photo courtesy of the US Department of Energy)

A new kind of commercial-scale
power plant is tapping the earth’s heat
and converting it to electricity. Lester
Graham reports:

Transcript

A new kind of commercial-scale
power plant is tapping the earth’s heat
and converting it to electricity. Lester
Graham reports:

A company called Raser Technologies just started up a new electric generating plant
using geothermal. No emissions, no pollution – just power.

Brent Cook is the CEO of Raser.

“This first phase of the plant that we just brought on-line will power approximately
nine-thousand homes in the city of Anaheim, California.”

Cook says this technology will work a lot of places out West where the earth’s crust
is a little thinner. You don’t have as far to drill down into the earth.

A National Renewable Energy Lab report estimates geothermal could meet about a
third of the nation’s electrical demand.

And, this new technology developed by UTC Power could work other places. For
example, it could convert waste heat from factories into electricity.

For The Environment Report, this is Lester Graham.

Related Links

Brave New Warmer World for Vintners

  • Drier areas will find a warmer climate makes things tougher, but other areas might benefit (Photo by Patrick Tregenza, courtesy of the USDA Agricultural Research Service)

Farmers are starting to see signs
of climate change. One crop that’s more
susceptible to change than most is the wine
grape. Lester Graham reports not everybody
thinks that’s bad:

Transcript

Farmers are starting to see signs
of climate change. One crop that’s more
susceptible to change than most is the wine
grape. Lester Graham reports not everybody
thinks that’s bad:

Vineyards are likely to be especially affected by climate change.

Gregory Jones is a research climatologist at Southern Oregon University. He says
growing grapes for wine is always a tricky business, and climate change will make it
tricker.

Gregory Jones: “Pinot noir is produced in a cool climate and cabernet sauvignon in
a warm climate, and you cannot produce one in the other without having it affect
style, quality and flavor.”

So, grape growers across the nation are watching things closely. Drier areas will
find it tougher, but other areas actually might benefit.

Bill Hendricks is showing me his vines. Pinot grigio, cabernet franc, cabernet
sauvignon.

Hendricks says grape growers in central Michigan – where he is, Virginia, Missouri, California – they’re all beginning to see changes.

“They see it coming. You know, the record year of ’99—what, 2001 I also think.
Like, last year we were about ten days above norm. This year we’re four days above
norm.”

As the climate changes, some vineyards might have to switch to different varietals –
different kinds of grapes.

(sound of the peninsula)

More than 200 miles northwest of Hendrick’s vineyards, on a peninsula jutting into Lake Michigan, there’s a wine
growing area called Leelanau. It’s known for its white wines. It’s always been a little too
cool for red wine grapes, but things are changing.

Chalie Edson is the vintner at Bel Lago Vineyard and Winery. He says he doesn’t
want to call the warmer seasons global warming.

“Not being a climatologist, I’m going to answer
‘no.’ It’s tempting to say ‘Yes, yes. It’s getting warmer.’ Whether that translates into
overall increase of warmth in expected temperatures in the years to come, I think that’s still
somewhat speculative. But, I sort of hope that it happens.”

Yep, you heard right. Global warming would be beneficial to Edson. You might be
wondering, ‘why?’ Well, because this climate is better suited to white wines, and red wines
sell better.

“People come to northern
Michigan just like they come to any other winemaking region and they ask for reds.
We’ve made some really great progress in the last ten years in making reds as the
winemakers learn better how to utilize the fruit that we have here. And we’ve also
had a string of really warm vintages.”

But right now, Leelanua County is known for its white wines.

Climatologist, Gregory Jones says there’s a real question whether wine
consumers will be able to keep up with the changes.

“If you’re in a historic region that’s always produced pinot noir and all of a sudden
you really can’t do that, you know, because the climate’s changed, then you’re going
to grow merlot and you’re going to do it very well in that same place, but the
consumer has to be retrained.”

And so Burgandy wines might not come from Burgandy in the future, and wine
drinkers will have to try to keep up.

(sound of bottles clinking and price-tag gun clicking)

At Plum Market in Ann Arbor, Michigan, wine buyer Rod Johnson says climate
change has been a good thing for wine – so far.

“So, places like Michigan which traditionally have been too cold is suddenly seeing a
lot of different wines like pinot grigio and riesling, even pinot noir being able to be
grown here. So that’s beneficial. Same thing in Germany. They’ve had great year
after great year after great year in Germany where it used to be they were too cold.
When we get to the point that we’re hurting the wine business, I think there will be a
lot more hurt going elsewhere in the world.”

So if those dry California areas or Mediterranean areas get too warm and too dry for
wine grapes, that’ll probably be the least of their worries.

For The Environment Report, I’m Lester Graham.

Related Links

Study: Coffee Dates Best

  • A new study shows that if you're holding something warm, you might like people more than if you're holding something cold (Source: MarkSweep at Wikimedia Commons)

A study published in the journal
Science suggests that there might be a link
between how warm you are and how much you
like someone. Jessi Ziegler reports:

Transcript

A study published in the journal
Science suggests that there might be a link
between how warm you are and how much you
like someone. Jessi Ziegler reports:

The study was really simple.

Researchers pretended to have their hands really full, and
asked people to hold their coffee for them. Some of the
coffee was iced, some was hot. The people were then
asked to rate others’ personalities.

You know, like in terms of being a “warm” person or a
“cold” person.

They discovered that those who held the hot coffee rated
people as warmer. The people who held iced coffee? Not
so much.

Lawrence Williams at UC Boulder is co-author of the study.

He thinks this has to do with associations made when
you’re a baby. Your first concept of social warmth
coincides with physical warmth.

So, what does this study mean for you?

“This work suggests that going out for coffee might be
effective in getting the relationship off on the right foot,
as opposed to going out for ice cream, for example.”

You heard it here. Coffee dates are a much better bet.

For The Environment Report, this is Jessi Ziegler.

Related Links

Winter’s Chill to Bring Bigger Bill

  • Due to the price of natural gas and crude oil, it is predicted that it will cost you much more to heat your home this winter (Photo by John Ferguson, courtesy of FEMA)

As summer winds down, you’re
probably not thinking about your
heating bill. But that’s something
market analysts are thinking about
right now. And reporter Kyle Norris
finds the predictions of what it will
cost to heat your home are going up
in a big way:

Transcript

As summer winds down, you’re
probably not thinking about your
heating bill. But that’s something
market analysts are thinking about
right now. And reporter Kyle Norris
finds the predictions of what it will
cost to heat your home are going up
in a big way:


This year the average cost of heating your home is going to cost a good
chunk more than what it did last year.

Doug MacIntyre is an analyst with the US Energy Information
Administration.

“We’re estimating that, on average, the household using natural gas to
heat their home will be spending 24% more than last year. For heating
oil we think the increase will be even higher with house holds spending
about 36% more than they did last year.”

Those predications are made by looking at the cost of things like natural
gas and crude oil. And by analyzing the weather forecast for the up-
coming winter.

MacIntyre says he does not expect these expensive heating costs to go
away anytime in the next few years.

For The Environment Report, I’m Kyle Norris.

Related Links

Report: West Warming Fast

  • The Colorado River in the Eastern end of the Grand Canyon National Park, below Desert View Overlook (Photo courtesy of the National Park Service)

A report from environmentalists concludes the
American West is getting hotter faster than the rest of
the globe. Lester Graham reports:

Transcript

A report from environmentalists concludes the
American West is getting hotter faster than the rest of
the globe. Lester Graham reports:

Now, this report was not peer reviewed, but The Natural Resources Defense Council and the
Rocky Mountain Climate Organization insist the data show it’s gotten hotter in the West
when you compare the last five years to the global average during the last century.

Theo Spencer is with the NRDC. He says water is always important in the West, and
this climate change is causing problems.

“The Colorado River Basin, which provides water for about 30 million people in the West, the temperature over the past 5 years increased 2.2 degrees. So that’s 120% more than the rest of the globe.”

The report says the Colorado is in a record drought – and that affects Denver,
Albuquerque, Las Vegas, Phoenix, Los Angeles and San Diego.

For The Environment Report, this is Lester Graham.

Related Links