Tag: plants

Nuclear Careers to Heat Up?

  • Until recently, there hasn’t been an order for a new nuclear plant in 30 years. (Photo courtesy of the National Renewable Energy Laboratory)

Some Senate Republicans want the climate
change bill to focus on building new nuclear
power plants. They’re calling for as many as
100 new plants in 20 years. But the industry
has been in decline for so many years now,
there’s concern there might not be enough
nuclear engineers to do the job. Julie Grant
reports:

Transcript

Some Senate Republicans want the climate
change bill to focus on building new nuclear
power plants. They’re calling for as many as
100 new plants in 20 years. But the industry
has been in decline for so many years now,
there’s concern there might not be enough
nuclear engineers to do the job. Julie Grant
reports:

There’s a lot of new interest in nuclear energy and technology these days. But there’s a problem.

The American Nuclear Society estimates they need 700 new nuclear engineers per year to keep up with growing the demand. It’s enough to give long-time nuclear supporters whip-lash. Until recently, things looked gloomy for the nuclear industry.

William Martin is chair of the nuclear engineering department at the University of Michigan. Ten years ago, he says no new plants were being designed or built. And he was having a tough time finding students.

“A student entering the field, what you could tell them was, ‘well, there’s a big focus on waste.’ That’s not hardly something that excites young students to enter the field.”

Martin remembers standing on the stage at graduation in the mid 1990s to call the names of his graduates. Other engineering departments had so many students, it took an hour to call them all. But Martin only had a few names to call.

“Our students trip across in about ten seconds.”

Lots of nuclear engineering programs didn’t make it through the down times. There are less than half the university programs today than there were 30 years ago.

Nuclear got a bad name starting in 1979 – with the meltdown at Three Mile Island in Pennsylvania. That was followed by the deadly nuclear accident at Chernobyl, Ukraine in the ‘80s.
By the early 1990s, President Clinton announced he would eliminate funding for nuclear power research and development.

Until recently, there hasn’t been an order for a new nuclear plant in 30 years.

Vaughn Gilbert is spokesman for Westinghouse Electric Company, which focuses on nuclear energy.


He says Westinghouse laid off a lot its engineers in the down years. A decade ago, those who were left were heading toward retirement. So, Gilbert says, the company started working with universities to train engineering students to run its aging nuclear plants.

“Simply because we knew we would need to attract new people to maintain the existing fleet and then also to work with our customers to decommission the plants as they came offline.”

Westinghouse and other nuclear companies started giving lots of money to maintain university programs.

And then, everyone started worrying about climate change – and looking for ways to make energy that wouldn’t create more greenhouse gases. Nuclear power has started making a comeback.

Gilbert says new plants are in the works again – and Westinghouse needs engineers. The company’s designs will be used in six new U.S. plants.

The timing is pretty good for 25 year old Nick Touran. He’s a PhD student in nuclear engineering at the University of Michigan. He knows there’s a negative stigma to nuclear power – because he’s asked people about it.

“I just say, ‘so what do you think about nuclear power?’ Just to passersby on the street. And one person said, ‘I only think one thing – no, no, no, no, no.’”

But Touran says the negative stuff mostly comes from older people. When Three Mile Island melted-down, Touran wasn’t even born yet. He says most people his age are much more accepting of nuclear power.

“It’s the people who remember Three Mile Island and remember Chernobyl and remember World War II, who have all these very negative associations with nuclear weapons and Soviet reactors that were built incredibly wrong. And stuff like that.”

Touran says much of his generation just sees a power source that doesn’t create greenhouse gases.

Of course, there are greenhouse gases created in the process of manufacturing nuclear fuel rods. And then there’s that pesky problem of that spent nuclear waste. There’s still no permanent place to dump it.

Touran says he started studying nuclear power because he was amazed by it. But as the number of students in his department grows, he says more are choosing nuclear because it’s a smart career choice.

For The Environment Report, I’m Julie Grant.

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Your Power Bill in the Future

  • The Energy Information Administration says power bills could also fluctuate based on whether we develop cheap low-carbon coal technology. (Photo source: Frank C. Muller at Wikimedia Commons)

The price we pay for power in the
future will depend on the kind of
power plants we invest in. That’s
according to a report that examines
proposed climate change regulations.
Shawn Allee has more:

Transcript

The price we pay for power in the
future will depend on the kind of
power plants we invest in. That’s
according to a report that examines
proposed climate change regulations.
Shawn Allee has more:

The Energy Information Administration is the federal government’s crystal ball when it comes to energy policy.

The EIA looked at the House version of a big climate change bill. The Senate takes it up next month.

Forecast director John Conti says new regulations could cost each household between $12 and $227 more each year within a decade.

Conti says there’s a range because it’s not exactly clear how much it’ll cost to switch to low-carbon power sources, like nuclear.

“For most technologies, you have a good idea of how much they’re going to cost. Of course, we haven’t built a nuclear plant in twenty or so years and, as a result, there’re varying cost estimates and people can debate, I think, for a large extent, until that first plant is indeed built.”

Conti says power bills could also fluctuate based on whether we develop cheap low-carbon coal technology.

For The Environment Report, I’m Shawn Allee.

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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.

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Energy Bill to Include Boost for Biomass?

  • Biomass is catch-all term for technology that turns things like wood chips into energy or heat. (Photo by Susan Mittleman)

Congress could wrap up a huge energy bill by this fall.
It could include a minimum renewable energy standard for
utilities. That’d mean more wind and solar-generated power.
Shawn Allee reports biomass could get a boost, too:

Transcript

Congress could wrap up a huge energy bill by this fall.
It could include a minimum renewable energy standard for
utilities. That’d mean more wind and solar-generated power.
Shawn Allee reports biomass could get a boost, too:

Biomass is catch-all term for technology that turns grass, wood chips, or even algae into energy or heat.

It’s usually ignored in political discussions, but Vermont Senator Bernie Sanders brought it up in a recent hearing.

He says he was inspired by a power plant he saw at Middlebury College.

“I went to a plant they have on campus which is using wood chips replacing oil they are saving $700,000 a year and creating local jobs and cutting greenhouse gas emissions.”

Congress is considering what kind of plants and agricultural waste might qualify as “renewable biomass energy.”

Some energy analysts say some plants shouldn’t be included, since it could take too much energy collect and transport them.

For The Environment Report, I’m Shawn Allee.

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‘World’s Biggest Company’ in Crisis

  • The Black-and-White Ruffed Lemur, threat category: Critically Endangered (Photo by Jean-Christophe Vié, courtesy of the IUCN)

There’s a new report out on the
state of the world’s creatures.
It’s called the Red List of Threatened
Species. And, as you can imagine,
the Red List is not a good list to
be on. Mark Brush has more:

Transcript

There’s a new report out on the state of the world’s creatures. It’s called the Red List of Threatened Species. And, as you can imagine, the Red List is not a good list to be on. Mark Brush has more:

This report is put out by the International Union for Conservation of Nature. They cataloged about 45,000 species worldwide. They say about 38% of those are threatened with extinction.

Species sometimes naturally go extinct. But, the researchers say, today’s extinction rates are happening a lot faster – mostly because people are destroying habitat.

Jean-Christophe Vié is the senior editor of the report.

“If you think of nature as a company, it’s the largest in the world. So now we are in this economic crisis, if there was one company to save, it’s not the car industry, or saving a bank – it’s saving nature, because it’s for the benefit of all of us.”

Vié says they were only able to report on about 3% of all the known species around the world.

But, they still feel they have a pretty good idea of the overall trend. And it’s not a good trend.

For The Environment Report, I’m Mark Brush.

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Where to Put Solar Power Plants

  • North America's largest solar plant, covering 140 acres, is located near Las Vegas (Photo courtesy of the Nellis Air Force Base)

Environmental groups have pushed for decades to get the federal government solidly behind solar energy. Shawn Allee reports some of them don’t like the government’s most recent effort to promote it:

Transcript

Environmental groups have pushed for decades to get the federal government solidly behind solar energy. Shawn Allee reports some of them don’t like the government’s most recent effort to promote it:

The Federal Bureau of Land Management developed 24 “solar energy study areas” in Western states.

The idea is to identify federal land that might be be good for solar power plants.

Some environmentalists scoured maps of these solar study areas and got concerned.

Jeffrey Morgan is with Tahquitz Sierra Club in California.

Morgan says a solar plant can take up hundreds of acres, and construction could disturb desert tortoise and cactus habitat.

“They have no concept the desert is a vital, living place with a vast diversity of species, unspoiled landscapes and many, many other things. They they just see it as a waste-land. That’s just not true – it’s not a waste-land.”

The Bureau of Land Management says the “solar energy study areas” are just that – they’re for study – and the government would not let solar energy developers disturb critical wildlife habitat.

For The Environment Report, I’m Shawn Allee.

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Grappling With the Grid

  • Net metering is when people use rooftop solar or wind power to generate electricity, and then sell the extra back to the power companies (Photo courtesy of Sandia National Laboratories)

As a climate change bill works its way

through Congress, businesses are bracing

for change to cleaner energy. Lester Graham

reports some homeowners are thinking about

generating their own clean electricity:

Transcript

As a climate change bill works its way

through Congress, businesses are bracing

for change to cleaner energy. Lester Graham

reports some homeowners are thinking about

generating their own clean electricity:

People like the idea of using rooftop solar or wind power to generate the electricity and selling extra back to the power companies. It’s called net metering.

But some state regulations don’t allow it.

James Rose is the Senior Policy Analyst for the Network for New Energy Choices. He says these days more states are smoothing the way for net metering.

“It started out looking like a very big patchwork quilt – where some states are doing well, other states aren’t doing well, other states aren’t doing anything – to more of a regional mosaic, now where we see, like, the northeastern states in the United States to really improve their net metering. States out West such as Colorado and California are leading the way.”

Some power companies block net metering where they can.

But Rose says as lawmakers watch neighboring states implement net metering, and then embrace the idea for their own states.

For The Environment Report, I’m Lester Graham.

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Saving Underwater Forests From a Prickly Pest

  • A few years ago, urchins had mowed this huge kelp forest down to just a few square feet (Photo by Ann Dornfeld)

Most of the world’s forests are on dry land. But in a few special places on earth, forests grow underwater. They’re kelp forests. And they’re home to an astounding array of marine life. Trouble is, these underwater forests are vanishing. Ann Dornfeld reports on efforts to turn the tide:

Transcript

Most of the world’s forests are on dry land. But in a few special places on earth, forests grow underwater. They’re kelp forests. And they’re home to an astounding array of marine life. Trouble is, these underwater forests are vanishing. Ann Dornfeld reports on efforts to turn the tide:

A healthy kelp forest is so thick with fish and invertebrates that you’d swear you were looking at an aquarium exhibit.

They’re biodiversity hotspots – places that feed and protect an extraordinary number of species.

Brian Meux of Santa Monica Baykeeper standing on the deck of a boat in his wetsuit. He’s looking proudly at a thriving kelp forest along a rocky coastline near Los Angeles.

“This is our little jewel on this coast. Not only does the kelp forest have over 800 species dependent on it, but more than a quarter of all California marine species are dependent upon the kelp forest during some part of their life cycle.”

Since the 1960s, Southern California has lost 90% of its kelp forests. The culprit looks like a small purple pin cushion.

It’s a sea urchin!

Urchins love to eat kelp, and their populations have gone out of control. That’s because overfishing has removed most of the large fish and lobsters that eat urchins.

A few years ago, urchins had mowed this kelp forest down to just a few square feet. So Meux and a team of Baykeeper volunteers are trying to restore the balance.

They’re licensed by the state to do “urchin relocation.”

“what we do is go down, collect urchins by hand, get them on the boat and relocate them to areas where they will no longer harm the kelp forest.”

Sounds easy enough.

“Some of them you’ll want to just pull off the reef – they’ll look like they just can come off – I recommend using the tool. Urchin spines in your fingers… just not fun. ”

Or maybe not.

Either way, it’s time for the us to gear up and jump in.

(sound of diving in and scuba breathing)

Twenty-five feet underwater, the ocean surges so violently that the divers cling to rocks so they won’t be swept away.

It’s tricky to find a safe rock to grab because most of them are covered in urchins that have moved in on this young kelp forest.

But urchins aren’t the only migrants.

Huge purple sheephead and fire-orange Garibaldi fish swim by. A small octopus sits curled in a crevice. Pastel sea stars are everywhere.

Four years ago, this site was pretty much just rocks and urchins.

Two dives later, the divers are back on the boat.

Diver 1: “That was a workout!”

Diver 2: “That was a workout. I’m tired.”

After the team hauls up bag after bags of purple and red urchins, we try unsuccessfully to extract a spine from one volunteer’s finger.

Next, we move to deeper water a mile away. This will be the urchins’ new home.

The divers count the prickly balls as they throw them overboard.

Diver: “Purple!”

Each time a diver counts ten urchins of a particular color, they call it out.

Divers: “Purple! Purple.”

Similar kelp restoration efforts have revived kelp forests along other stretches of the California coast. But while those projects involved reseeding of the kelp forest, Meux says Baykeeper focuses on urchin relocation.

“We’ve found that mostly just get rid of the urchins and natural kelp spores will seed the reef and the return of kelp will ensue.”

Diver: “Purple!”

In all today, the team has relocated about 1500 urchins.

Between weekly trips like these and giant kelp’s ability to grow as fast as two feet a day, kelp restoration is a
heartening environmental success story.

In order for Southern California’s kelp forests to make a widespread comeback, Brian Meux says the state will need to limit the fishing that caused this problem in the first place.

And that issue’s as prickly as an urchin.

For The Environment Report, I’m Ann Dornfeld.

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Sea Levels Threaten Coastal Towns (Part Two)

  • A living shoreline near the Chesapeake Bay in Maryland. The native grasses and sandy shore provide habitat for terrapins, the University of Maryland mascot. (Photo by Tamara Keith)

Scientists are pretty certain climate change is going to cause the sea level to rise. It’s
happening already, actually. In communities around the Chesapeake Bay, people are
getting a sneak preview. Tamara Keith reports some people there are trying to work with
nature rather than resist it:

Transcript

Scientists are pretty certain climate change is going to cause the sea level to rise. It’s
happening already, actually. In communities around the Chesapeake Bay, people are
getting a sneak preview. Tamara Keith reports some people there are trying to work with
nature rather than resist it:

(sound of kids planting)

It’s been raining in Woodland Beach. The community is just off of the Chesapeake Bay
in Maryland. The ground here is so soft you sink into it. Mud is everywhere. And that’s
just fine with the volunteers planting native grasses on a sloping hillside.

Stephen Hult is trying to keep things in order.

“And when we plant them we want them all the way down. I’m telling everyone twice.”

Hult heads up shoreline restoration projects for the local property owners association.
And there’s a lot of shoreline to restore.

“The shoreline, in parts of the community since the 1930s, have eroded 20 feet. Year to
year, one barely notices, but if you look at aerial maps of what it used to be like
compared to what it is, it really is quite dramatic.”

There’s been tons of erosion here. The land all along the mid-Atlantic coast is also
slowly sinking. Combine that with global sea level rise and you get erosion in overdrive.

Hult says the community is trying to restore the beach with rock and dirt and sand and
grasses to hold it all together. This is what’s called a living shoreline.

“We have now, with this project it will be well over half a mile of living shorelines that
we’ve installed.”

It’s a relatively new concept, a more natural approach to the gnawing problem of
shoreline erosion. Living shorelines create buffer between the water and homes. They are
kinda like the tidal wetlands that used to be here – before property owners started building
sea walls, also called bulkheads.

Jana Davis is associate director of the Chesapeake Bay Trust. It’s one of the organizations
funding this shoreline restoration. And Davis also happens to live here.

“It’s a wonderful alternative that provides just as good shoreline protection while also
providing a lot of really important habitat benefits that a bulkhead or rock sea wall does
not provide.”

Good for wildlife, and she says, it’s adaptive in the face of sea level rise.

“If sea level were to rise another foot, for example. The marsh could kind of migrate
inland, whereas if you had a bulkhead obviously there’s no migration because it can’t
move.”

But most of the people with bulkheads are NOT buying it. They want to protect their
property from the sinking land and rising water, and a lot of them don’t think a bunch of
rocks and grass are going to cut it.

Kevin Smith is chief of restoration services for the Maryland Department of Natural
Resources.

“There’s many places you can go and look at miles of shoreline and not see any natural
shoreline at all. It’s all armored off.”

Smith met me at a nature center along the bay. A few years ago, a stretch of bulkhead
here was replaced with a living shoreline. The natural ebb and flow of these shorelines
has made some property owners skeptical. They want the shoreline to stay put.

“If these types of projects don’t protect that shoreline from erosion, then homeowners are
not going to want to do it.”

But Smith insists these projects do work, and long term they’re going to be more
sustainable and more flexible than bulkheads – which over time will lose the battle
against the constant pounding of the rising sea.

For The Environment Report, I’m Tamara Keith.

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Coral Conservation in the Caribbean

  • The island of Bonaire is somewhat of an anomaly in the Caribbean due to its remarkably preserved coral reefs (Photo by Ann Dornfeld)

Scientists say nearly half of the coral reefs in the US are in bad shape.
Many are dead. The situation is similar in much of the world. But not
everywhere, as Ann Dornfeld found on the Caribbean island of Bonaire:

Transcript

Scientists say nearly half of the coral reefs in the US are in bad shape.
Many are dead. The situation is similar in much of the world. But not
everywhere, as Ann Dornfeld found on the Caribbean island of Bonaire:

(sound of waves on shore)

Jerry Ligon was working as the on-board naturalist on a small Caribbean
cruise ship when he first saw Bonaire.

“And I saw how clear the water was. And I’d been able to compare, during
my stint on the cruise ship, other islands in the Caribbean, and I realized
how special Bonaire was. So that was at the end of my contract, so I
decided to stay here. And I’ve been here for 15 years!”

It’s wasn’t just the clarity of Bonaire’s water that made Ligon stick around. It
was the remarkably healthy coral reefs that lay beneath the waves.

“I can even talk to divers who come to Bonaire and they say, ‘What
fantastic diving!’ and they remember, ‘This is how the way it was in Cayman
Islands 25 years ago!'”

Ligon says the Cayman Islands might have even had more impressive
reefs than Bonaire’s back in the day. But coral throughout the US and
Caribbean has been in sharp decline for decades.

So how do Bonaire’s reefs remain intact?

Ramón de León is the manager of the Bonaire National Marine Park. He
says the island has an advantage in that it has no industries to pollute the
water.

The island is mostly undeveloped, which means relatively little farm and
lawn fertilizer run-off that can create marine algae blooms. And cool
upwellings in the region help balance the rising ocean temperatures. Warm
oceans can cause coral bleaching, which often kills the coral animal.

But de León says Bonaire really owes its healthy reefs to its history of
conservation laws. They date back to an era when such policies were rare.

“Bonaire start to protect sea turtles and turtle nests in 1961, back when
everybody was promoting sea turtle soups and nailing shells in the walls.”

By the end of the 1970s, Bonaire had banned spear fishing and made it
illegal to damage coral. For years, divers have been required to pay a
sizeable fee and take an orientation course before they’re allowed to dive
on the island. That helps them avoid touching the coral, which can kill it.

De León says the island still allows too much fishing. So several years ago,
he told the island’s fishermen they needed to choose a no-take zone to let
the reefs recover.

“I refuse to decide myself. I give the fishermen some prerequisites that they
have to have to close, and they chose which area. Is not my number-one
option, but is their number-one option. So I have to respect that.”

De León says because the fishermen chose the no-take zone, something
important happened. Compliance is high.

For all of Bonaire’s success in coral conservation, there are still some
problems. De León says its reefs suffer from leaky septic tanks and boat
pollution. And there are few of the large predator fish that used to maintain
population balance on the reefs.

But the island is a haven for researchers like Mark Patterson. He designs
underwater robots at Virginia Institute of Marine Sciences.

Last year he led a NOAA expedition to use robots to map Bonaire’s reefs.
He says the island’s reefs are valuable as a baseline by which other reefs
can be judged.

“If you’re an up-and-coming marine scientist and you go to a lot of the coral
reefs on the planet now, you might think that all coral reefs have always
look like this. And they haven’t! So the fact that we’ve got some pristine
reefs left is very important, and we’ve got to work very hard to protect them
because it shows us how the ecosystem should look and used to look
around the planet before things started to go downhill.”

For The Environment Report, I’m Ann Dornfeld.

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