Greening the Capital City’s Rooftops

  • This high-rise green roof in Washington DC required a large crane to lift the soil and gravel onto three floors. (Photo courtesy of DC Greenworks)

Green roofs are increasing in popularity across the US, especially in cities, where
there’s not a lot of space for gardens. Sabri Ben Achour explores the trend in
Washington, DC, where the city government is promoting the practice for it’s
environmental benefits:

Transcript

Green roofs are increasing in popularity across the US, especially in cities, where
there’s not a lot of space for gardens. Sabri Ben Achour explores the trend in
Washington, DC, where the city government is promoting the practice for it’s
environmental benefits:

In Washington, you can see flowers and vegetables growing on top of homes,
businesses, even government buildings throughout the city. DC officials say
Washington has nearly 70,000 square feet of rooftop greenery. Only Chicago has
more.

One big fan of these so called green roofs is a popular small hotel, Tabard Inn, just a
few blocks from the White House.

“There’s about 10 varieties of sedum on this roof.”

Sarah Murphy is giving a tour. She’s a horticulturalist.

“This is a very pungent oregano here on the corner, it looks heavily used.”

The city of Washington pays building owners about one-fourth of the cost of
incorporating greenery on rooftops. One big reason? Rainwater runoff.

Sarah Loveland works for an environmental consulting non-profit called DC
Greenworks.

She says Washington has what’s called a combined sewer system. The sewer
system doesn’t just take in what’s flushed down the drain, but also all the rain
running off roofs and streets.

“If you imagine that our sewage treatment plant has a dam, and the sewage system
combines with the storm water system before the treatment plant.”

So, when there’s a heavy rain, that dam at the sewage treatment plant overflows.

“You have both raw sewage and runoff from the streets going directly into the river
untreated.”

Three billion gallons of it a year, at one point.

The EPA sued the District of Columbia.

The city had to spend $150 million to address the problem. Part of that money goes
to green roof grants.

The green roofs slow down rain water – give it some place to soak instead of just
running off straight down the gutter. The city says roofs in the city prevent a million
gallons of storm water runoff from entering the Potomac River.

The roofs also insulate buildings – especially during the summer. Some studies
show they reduce energy costs by 20-30%. And they reduce the heat island effect in
the city, since they don’t get blisteringly hot like traditional roofs.

Green Roofs even offer some habitat for creatures, like bees.

Sarah Loveland with Greenworks, the consultant agency, says rooftop gardens are
also increasingly popular for growing food.

“Veggies are really popular, herbs are really popular – this is a trend that’s taking off
in the restaurant industry. There’s a lot of buzz around it.”

Blueberries and herbs abound in the rooftop gardens of the Tabard Inn, where Paul
Pell is executive chef.

(sound of celery chopping)

“Yeah, we go up and get whatever we want, so it’s fresh. We just climb out the
window when we need it. Chocolate basil goes with ice cream, nasturtiums go with
soups and salads.”

Washington has an advantage over some larger cities in its promotion of rooftop
gardens because federal law prohibits skyscrapers in the nation’s capital, so most
buildings don’t cast shadows over their neighbors.

As a result, most rooftops are sunny – all they need is greenery to soak up the rays.

For The Environment Report, I’m Sabri Ben-Achour.

Related Links

Preserving Cultural Remedies

  • Faith learned about the use of many herbs for home remedies from her father in Louisiana when she was a small girl. (Photo by Kyle Norris)

When most of us get sick we go to the doctor and get medicine. But
some people are holding onto the old ways of healing. And many
people think we could learn a lot from the old ways. Kyle Norris has
this story:

Transcript

When most of us get sick we go to the doctor and get medicine. But
some people are holding onto the old ways of healing. And many
people think we could learn a lot from the old ways. Kyle Norris has
this story:


The small store is called Nature’s Products. It’s in a neighborhood with
a lot of abandoned buildings and store-front churches. When you walk
inside the store, the smell of incense clings to your clothes.
Green plants hang in the windows, and there are jars and jars of bulk herbs lining
the shelves.


Gary Wanttaga opened the store thirty years ago. He’s always been
interested in natural healing techniques and herbal medicine. That all
might sound new-agey, but this place is not new-agey at all. The
reason Wanttaga opened the store in his hometown of Detroit was
because he wanted to help the people who lived here:


“In lot of urban areas people are very limited on resources. They’re limited
with money. They’re limited with shopping resources. And this is one way
that I try to give back to the community”


Wanttaga says one of the main reasons he’s stayed in Detroit is because of
his customers. They’re some of his biggest teachers. Many of his
customers are older African-Americans. They came from the South to work
in the factories during World War II. When they came they brought with
them a cultural knowledge of herbs and natural healing techniques.


One of his customers is 72-year-old Faith. That’s her legal name – just
“Faith.” She grew up in a segregated farming community in Louisiana. Her
father was a farmer, and he taught her all about the herbs:


“I’m the youngest child of all, so I’m the baby. And he would often let me
ride on his shoulder. And sometime I’d be saying ‘Papa, what is this?’ and he
would tell me what that was, we’d be walking through the fields and he
would tell me what was, and he would tell me different things, what you use this for
what you use that for. I had 100 questions. Boy, I was a kid I had a 100
questions.”


She says back then, everyone knew about the herbs, and everyone used
them. At that time, people who were poor or black or who lived in rural
areas did not often have the option of going to a doctor. And so they turned
to the plants and trees around them for medicine, and they developed a great
knowledge about what did and didn’t work to keep people healthy:


“The pine tree was used for many things. Because it’s one of things where
you get turpentine from. It was definitely used for healing. And we used
turpentine for sores. And it works today! If you get a cut and you put
turpentine on it immediately as soon after you hit it, it will never be sore.”


Herbs were out first form of medicine. That’s what Suzanna Zick says.
She’s a naturopathic physician who teaches at the University of
Michigan. She says we have a collective knowledge about herbs that’s
thousands of years old. She says when you compare that to what
modern-day science knows about herbs, it’s not much of a comparison:


“In a sense we have just a tiny little window that science shows us, as
compared to the long use.”


Zick says we could learn a lot from these folks and the knowledge they
have, but not many researchers are studying people like the customers
here in Detroit:


“I think that we can actually learn what herbs they’re using a lot of and
what for. Because I think those are probably the ones that would be of
most interest. In particular, it’s a good question too if they’re using
them with conventional medications, it’s for safety issues. But also if
this is their primary health care for some of them, if it’s working, then
this is a very inexpensive way of providing health care for people who
might otherwise get none.”


Everyone we heard from in this story said the same thing. For us to
have good health, the old-school ways of healing can work hand-in-
hand with modern-day doctors and science. But the people who know
about the herbs are growing older and dying, and their knowledge is dying with them.


For the Environment Report, I’m Kyle Norris.

Related Links

Encouraging Farmers to Enter Alternative Crop Market

Lawmakers in one state are looking at possible incentives to help farmers expand into the lucrative alternative crop market. The Great Lakes Radio Consortium’s Joyce Kryszak has details:

Transcript

Lawmakers in one state are looking at possible incentives to help farmers expand into the
lucrative alternative crop market. The Great Lakes Radio Consortium’s Joyce Kryszak has
details:


New York once had a robust agricultural industry. But it’s taken some hard hits in recent years,
mainly from falling dairy prices. It’s nudged many farmers out of the business – and left fallow
thousands of acres of fertile soil. But state legislators think there may be a cure in the multi-
billion dollar herbal supplement business. They’re working on a plan that would provide
economic incentives to help farmers establish so called “grow zones” for alternative crops, such
as the popular herbal supplement, ginseng. Jim Hayes is a Western New York Assemblyman.
He says it would be a unique partnership that could reinvigorate the state’s farming industry.


“We’re trying to listen to scientists, and doctors, and farmers, and economic development people
to establish a protocol on how to get this thing started. And certainly it’s an area
that is just expanding nationwide, and we believe we should be capitalizing on here in New York
state.”


He says the program would also benefit consumers by developing high standards and controls for
herbal product purity and potency.


For the Great Lakes Radio Consortium, I’m Joyce Kryszak.

Natural Help for Colds

The season for coughs and sniffles is upon us. But instead of
turning to decongestants or antihistamines for relief, a growing number
of
doctors say you might be better off trying some natural treatments. The
Great Lakes Radio Consortium’s Wendy Nelson reports:

Transcript

The bad news is, there’s still no cure for the common cold. The good news is, natural treatments

can provide some relief.


Doctor Jack Sheerer is a board-certified M.D. in Ann Arbor, Michigan. He’s also a member of the

American Holistic Medical Association. Sheerer says when you’ve got a cold, even chicken soup has

its merits. He also tells patients to try vitamin C and echinacea.


Sheerer says these natural treatments are catching within the medical community.


“People that I would have through would be the last people to wonder about vitamins and herbs and

supplements are asking for advice on this. And it’s becoming pretty mainstream now.”


But, Sheerer adds, no matter which approach they choose, most doctors agree on one thing: when

you’ve got a cold, get lots and lots of rest.


For the Great Lakes Radio Consortium, I’m Wendy Nelson.

Grazin’ in the Backyard

More and more, people are accepting the idea that common plants can be
used as medicine. As it turns out, many of these same plants are very
nutritious. And some people are trying to combine those benefits. The
Great Lakes Radio Consortium’s Wendy Nelson reports:

Herbal Remedies Moving Mainstream

There are thousands of herbal products on the market today.
They generate over 4 billion dollars in sales a year. And many doctors
are taking more notice. Some physicians see a need for more credible
research on herbs and minerals. And they want other doctors to
communicate more with patients that are considering using these
products. Now one doctor has designed some guidelines on herbal
treatments. He hopes this will initiate more discussion and research
about these dietary supplements. The Great Lakes Radio Consortium’s
Todd Witter has more.