Tag: scientist

New Details on Bat-Killing Fungus

  • In caves where 200 to 300 thousand bats used to hibernate, scientists like Scott Darling have found that this year there are only hundreds. (Photo courtesy of the US Fish and Wildlife Service)

Scientists are racing to find a way to fight-off a fungus that’s killing bats. More than a million bats have died so far. Scientists believe entire hibernating bat species could be wiped out within two decades. Laura Iiyama reports the cause might have come from overseas:

Transcript

Scientists are racing to find a way to fight-off a fungus that’s killing bats. More than a million bats have died so far. Scientists believe entire hibernating bat species could be wiped out within two decades. Laura Iiyama reports the cause might have come from overseas:

Biologist Scott Darling knew something was wrong in a recent winter when he got several calls at his Fish and Wildlife office in Vermont. People told him about hundreds of bats flying in the air and dying in the snow. During winter, the furry mammals should be hibernating.

He went to Aeolus cave. It’s where the bats in the area should be crowded together on the walls and ceiling.

“Aeolus cave became a morgue. Bats freezing to death in clusters just outside the cave entrance. Most of the bats flew out of the cave onto the landscape to certain death.”

Where 200 to 300 thousand bats had hibernated just four years ago, this year there are just a couple hundred.

The dead bats had white nose syndrome.

The white powdery fungus was first noticed on bats in New York State in 2006. It’s spread into Ontario, Canada and as far south as Tennessee.

The fungus is not directly killing the bats.

Thomas Kunz is a professor at Boston University. He suspects the fungus keeps waking-up the hibernating bats.

“It may be simply the irritation from the fungus that is causing, if you have athlete’s feet, it itches.”

Instead of hibernating, surviving on their fat reserves, the bats keep waking-up. They burn off the fat. They get too thin. And they die.

Word spread about the fungus.

Thomas Kunz says some scientists recalled seeing a white fungus on bats elsewhere:

“Bat biologists in Europe have observed and reported that there are bats that do have the fungus although it doesn’t seem to be killing them.”

Scientists think someone visited a cave in Europe. Spores from the fungus got on clothing or shoes. Then that person wore the same shoes or clothing in a cave in the U.S. The spores were picked-up by the bats.

The bats huddle together in hibernation, easily spreading the fungus.

Often 90 percent of the bats are killed-off after the first appearance of the fungus. And Kunz says that may have been what happened to bats in Europe because we don’t find as many bats in European caves as there have been in North American caves:

“Now it’s very possible that in historic times there were large numbers of hibernating bats in Europe and these are the leftovers, these were the survivors that may be resistant to the fungus.”

So the arrival of the fungus may mean US bat species will permanently drop in numbers, like the bats in Europe.

David Blehert (blee-hurt) of the US Geological Survey says if that’s the case, it will be a dramatic change in life in caves in America and Canada.

“Whereas we have hibernation caves with 100 thousand, 300 thousand and even commonly lower ten thousand but those are rather common sites where we’ve seen the fungus decimate up to 95 percent and greater to the animals in the cave. Many of the European hibernation sites have between one and thirty animals.”

There’s no treatment for white nose syndrome. And even if a cure is found, it will be a very long time –centuries– before the bats recover. Bats reproduce slowly. The females have only one pup, one baby bat, per year. And there are over a million bats dead so far.

For The Environment Report, I’m Laura Iiyama.

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Interview: Dr. James Hansen, Part 2

  • Dr. James Hansen's book, 'Storms Of My Grandchildren: The Truth About The Coming Climate Catastrophe And Our Last Chance To Save Humanity' (Photo courtesy of Bloomsbury USA)

James Hansen is the author of
‘The Storms of My Grandchildren:
The Truth About The Coming Climate
Catastrophe And Our Last Chance To
Save Humanity.’ This is the second
half of our interview with Dr. Hansen.
He’s a climate scientist for NASA
and was the first scientist to testify
before Congress about climate change.
He stresses, he’s not speaking for
the government, but only for himself:

Transcript

James Hansen is the author of
‘The Storms of My Grandchildren:
The Truth About The Coming Climate
Catastrophe And Our Last Chance To
Save Humanity.’ This is the second
half of our interview with Dr. Hansen.
He’s a climate scientist for NASA
and was the first scientist to testify
before Congress about climate change.
He stresses, he’s not speaking for
the government, but only for himself:

Lester Graham: Doctor Hansen, in the book you say we should scrap the cap and trade system to reduce greenhouse gases, and instead go with a fee on fossil fuels and then give that money to the people directly to help them adapt to higher energy costs. How would that work?

Dr. James Hansen: The fee would be charged at the mine or the oil head or the port of entry for imported fossil fuels. It’d be collected from the fossil fuel companies and then they money should be distributed to the public on a uniform basis. You’d introduce this gradually so that people can change their habits, the technology that they use, the vehicles that they use, for example. So, you introduce it gradually, but by the time it’s reached a dollar of gallon on gasoline, at the rate of fossil fuel use last year, that would be generating $3,000 per legal resident of the country with to half a share to each child, up to two children per family. So a family with two or more children would be getting $9,000 a year in this dividend, which should be sent to them monthly just automatically, electronically, to their bank account or their debit card if they don’t have a bank account.

Lester: We’re talking about getting that through Washington D.C, where special interests drive the agenda often. I don’t want to accuse you of being naïve, but I believe many in Washington would.

Dr. Hansen: Yes, they do, however, there is a growing realization, environmental groups, like Friends of the Earth, which now recognize this is exactly what’s needed and they’re beginning to promote that. I think that’s why it’s a good thing that we’re kinda taking, probably taking, a year off dropping this cap and trade and give us a chance to discuss this because it’s what’s in the interest of the public as opposed to the lobbyists.

Lester: Since you first made congress aware of climate change as a pressing issue, the Clinton-Gore administration did nothing. President George W. Bush indicated he would deal with the emissions causing climate change, and then evidently Dick Cheney worked to kill that effort and Bush reversed his position. Now President Barak Obama has indicated we must do something, but legislation in Congress is stalled right now. What do you this is stopping this effort if this is such a serious threat?

Dr. Hansen: It is the role of money in Washington and other capitals around the world. Special interests have more influence on these policies than the public’s interest and that’s why, you know, we had hoped with the election of the new president things were really going to change, but I think he hasn’t really looked at this issue closely enough to really understand what’s in the people’s interest. And I hope that over the next year we can convince them that we need to move in a direction that is in the people’s interest rather than in the big businesses interest.

Lester: James Hansen is the author of The Storms of My Grandchildren, the truth about the upcoming climate catastrophe and the last chance to save humanity. Dr. Hansen, thank you very much for your time!

Dr. Hansen: Uh huh, thank you!

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Interview: Dr. James Hansen, Part 1

  • Dr. James Hansen is a climate scientist for NASA and the author of the book, 'Storms Of My Grandchildren.' (Photo courtesy of Bloomsbury USA)

James Hansen is the author of ‘The Storms
Of My Grandchildren: The Truth About
The Coming Climate Catastrophe And
Our Last Chance To Save Humanity.’
He’s been a climate scientist for NASA
and was the first scientist to testify before
Congress about climate change. In the
book, Hansen wrote about climate change,
‘We seem oblivious to the danger, unaware
how close we may be… to our demise.’
Lester Graham talked to Hansen and noted
that we don’t often hear strong language
like that from scientists:

Transcript

James Hansen is the author of ‘The Storms
Of My Grandchildren: The Truth About
The Coming Climate Catastrophe And
Our Last Chance To Save Humanity.’
He’s been a climate scientist for NASA
and was the first scientist to testify before
Congress about climate change. In the
book, Hansen wrote about climate change,
‘We seem oblivious to the danger, unaware
how close we may be… to our demise.’
Lester Graham talked to Hansen and noted
that we don’t often hear strong language
like that from scientists:

Dr. James Hansen: Well, the public is unaware of the situation, and that’s partly because of the way nature works. You know, weather is highly variable – 10 or 20 or 30 degree variations are common – while the global warming, so far, is about 1 degree Celsius, which is about 2 degrees Fahrenheit. So, people have a hard time seeing it. But the consequences are already becoming apparent, as we see with the melting sea ice in the arctic. The Northwest Passage is now actually open. Mountain glaciers melting around the world, sub-tropics expanding – which is affecting the Southwest United States and the Mediterranean region and Australia. And the problem is that those things are going to grow, and we’re going to pass tipping points, which will have disastrous consequences if we pass them. We don’t have to pass them though. And that’s why it’s appropriate for us to try to communicate the situation to the public, because the kinds of things that we need to do with our energy systems make sense anyway for different reasons.

Lester Graham: The evidence for climate change is growing – almost every week more studies are released, often indicating the future will be worse than first thought. What do you think we need to do to minimize the effects of climate change?

Dr. Hansen: Well, it’s very clear what we need to do. The carbon dioxide is increasing because of the burning of fossil fuels. If you look at how much carbon there is in oil, gas, and coal, you see that coal is, by far, the biggest reservoir. And then there’s the unconventional fossil fuels, like tar shale and tar sands. What we need to do is phase out the coal use and prohibit the use of these unconventional, dirty fossil fuels – and we could solve the problem. But to get there, there’s a very practical requirement, and that is that we begin to put a price on carbon emissions. The reason that people use fossil fuels as their main source of energy is that it’s the cheapest energy. And, as long as that’s the case, we’re going to keep using more and more. But the reason that they’re the cheapest is that we subsidize them – our government subsidizes them – and they don’t make them pay for the costs that they cause for society. The human health problems due to air pollution and water pollution, the mercury and the arsenic that comes from coal, and the costs of future climate change for our children and grandchildren – all of these are free for the fossil fuel companies. They don’t have to worry about those at all. The way we would solve that is to put a gradually rising price on carbon emissions. And there’s actually some good news in the newspaper, and that is that Senators Kerry, a Democrat, and Lindsey Graham, a Republican, announced that they’re not going to push cap-and-trade – which had been the big banks’ proposed solution to put a ‘cap’ on carbon emissions, and then they, you would (chuckles) – it was a complicated system where you could trade the rights to pollute. But the big winners would be the traders and the losers would be the public.

James Hansen is a climate
scientist for NASA and the author of the
book, ‘Storms Of My Grandchildren.’ He
spoke with The Environment Report’s
Lester Graham. We’ll hear
more from Dr. Hansen tomorrow, including
his idea on how to reduce using fossil fuels.

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Citizen Scientists Help Uncle Sam

  • Citizen scientist divers brave the chilly waters of Washington State to count the marine life below. (Photo by Ann Dornfeld)

As governments tighten their belts,
it’s getting harder for them to pay
scientists to monitor the health of
the nation’s ecosystems. So increasingly,
they’re turning to citizens who do
that kind of work for free. Ann Dornfeld
reports on the growing influence of these
“citizen scientists”:

Transcript

As governments tighten their belts,
it’s getting harder for them to pay
scientists to monitor the health of
the nation’s ecosystems. So increasingly,
they’re turning to citizens who do
that kind of work for free. Ann Dornfeld
reports on the growing influence of these
“citizen scientists”:

It’s the kind of cloudy, wet day that most people spend indoors. But the cold and wet doesn’t matter as much when you’re planning to spend your day at the bottom of a Puget Sound fjord.

(sound of divers splashing into water)

About 75 miles from Seattle, these scuba divers are conducting volunteer surveys for REEF, an organization that monitors fish populations around the world. The data help researchers understand where fish live, and in what kind of numbers. It’s the kind of information governments need to understand how fishing and pollution are affecting waterways.

Back on the boat, surveyor Janna Nichols has just emerged from the 48-degree water. She pulls out her survey and goes down the list marking off what she’s just seen.

“Sunflower stars, definitely, many of those – saw a lot of those around. No sand dollars, no sea urchins. Ah! Ooh! Ah! Here’s an exciting one! I saw a giant nudibranch! A very small giant nudibranch. But those are very cool to see – a treat!”

Identifying fish can be tricky, because the same species can have different coloration depending on its age, gender, or even time of the year.

“Black-eyed gobies were everywhere. I would say under a hundred of them. And – they were mating! Because I don’t know if you noticed, they had black pelvic fins. And they kind of hover around and say “Hey, baby baby, look at me!”

As much fun as these “citizen scientists” have, professional scientists take the data these divers collect seriously. Last summer volunteer surveyor David Jennings went diving in Washington’s Olympic National Park Marine Sanctuary. He was excited to see the colorful tiger and china rockfish he’d heard were abundant at the park. But when he got there, he only saw a couple. So he looked at the past six years of REEF survey data to see how the rockfish populations had changed.

“One of the best sources was someone that wrote up a diving experience he had in 2002 where he saw dozens of tigers and many chinas. Whereas I in a week of diving saw two tigers and just three chinas. so it was a very big contrast to what people saw in the past.”

Jennings took the data to the Washington State Department of Fish and Wildlife. That’s the agency that decides fishing limits. Greg Bargmann is a department fisheries biologist who’s working on next year’s catch limits for rockfish. He says even though the REEF divers aren’t as highly-trained as the state biologists, the data they collect are more current and cover a wider area.

“The REEF survey shows a very dramatic decrease in abundance over the last five years. Our state surveys don’t show that, but we have a lot of imprecision in our surveys so we’re relying on the REEF surveys to look for changes in population.”

That’s because the state can’t afford to send its biologists out as often or to as many sites as the volunteers dive.

“We really appreciate the interest of our citizens to spend time going out there and using their own transportation costs and their own equipment to go out and collect data, and to listen to us and collect things that are not easy to do sometimes.”

You don’t have to dive to be a citizen scientist. In Ohio, citizens track everything from salamanders to spiders. In California, tighter budgets mean more poaching – and not enough game wardens. So states are training volunteers to do more work. And across the country, the Environmental Protection Agency relies on citizens to monitor water quality in lakes and streams.

Bargmann says while governments rely on citizen scientists more during budget crunches, he sees programs like these becoming increasingly important for keeping track of the health of the environment.

For The Environment Report, I’m Ann Dornfeld.

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Stimulating Science With Research Dollars

  • Some government scientists say right now could be the only time in their careers to make some some key environmental advances. (Photo courtesy of the National Renewable Energy Laboratory)

We’re hearing more and more about federal
stimulus money being used to help laid-off
workers or repair bridges or roads. Shawn
Allee reports the government wants
stimulus money to move through a wish list
of environmental science projects, too:

Transcript

We’re hearing more and more about federal
stimulus money being used to help laid-off
workers or repair bridges or roads. Shawn
Allee reports the government wants
stimulus money to move through a wish list
of environmental science projects, too:

Department of Energy labs say stimulus dollar figures are staggering compared to what the government has been spending on science.

Take a federal renewable energy lab in Colorado.

Jeffrey Baker is a lab director there.

Baker says they’re learning to make ethanol out of plants other than corn. That project’s getting ten million dollars in stimulus money.

“The Recovery Act is allowing us to expand a project we already have, going to, in effect, double the capacity the nation has to do that research and development.”

Other Department of Energy labs got stimulus money for work on high-tech car batteries, smart energy grids, and radar to model global warming.

Some government scientists say right now could be the only time in their careers to make some some key environmental advances.

For The Environment Report, I’m Shawn Allee.

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Interview: From the Pacific Garbage Patch

  • Researchers with Project Kaisei are studying a swirling vortex of trash that has accumulated out in the Pacific Ocean. (Photo by Annie Crawley, courtesy of Project Kaisei)

A huge current rotates in the Pacific Ocean, causing floating plastic trash to gather in a giant vortex of garbage in the middle of the ocean – it’s become the world’s biggest dump. Project Kaisei has sent two ships to the area to study the problem. Doug Woodring is on the New Horizon. He talked with Lester Graham by satellite phone:

Transcript

A huge current rotates in the Pacific Ocean, causing floating plastic trash to gather in a giant vortex of garbage in the middle of the ocean – it’s become the world’s biggest dump. Project Kaisei has sent two ships to the area to study the problem. Doug Woodring is on the New Horizon. He talked with Lester Graham by satellite phone:

Lester Graham: You’re in the middle of the Pacific right now, looking for the Great Pacific Garbage patch. How much luck have you had in locating some of this plastic debris?

Doug Woodring: Unfortunately, too much luck. (laughs) It hasn’t been very difficult. In fact, I’m running into, ah, I can look out the window and see a big floating piece, right now, as we’re going by. But we’ve been, the last 5-6 days, we’ve been in it consistently. It’s not as many big pieces as the world might think, but it’s way many more small pieces than people know. And the reason is, with the UV dedrigation in the plastics, it get very brittle when it’s broken down by the sun, so after some time in the water, when the wave action, it’s very easy for everything to break down and sort of crack. So what we’re getting is what they call ‘confetti’, and it’s just literally in some places many, many pieces per square meter of this stuff. And we are really looking mostly at the surface, so it’s not known yet how deep this is either. So, there’s a lot of stuff out here.

Graham: Why’s this bad for the environment?

Woodring: When you get small pieces, you’ve got mistaken potential food source for animals. So, the marine life can be eating this. It is possible that it gets in the food chain. There are toxins, heavy metals, and persistent organic pollutants that attach themselves to plastics when they float. So, it’s not just a piece of plastic that a marine life eats, it’s a polluted piece of plastic. It’s also a little island, or a little flotation for species that can float around the ocean – and invasive species can go to different parts of the waters or land that wouldn’t have traveled that way otherwise. So, there’s a lot of implications that this science is only just now starting to help us figure out what’s going on.

Graham: Does anybody have any idea what we can do to reduce the impact of this huge garbage patch or to clean it up?

Woodring: Well, this is what we’re out here for. That’s the main part of our mission is to find solutions. And we can’t find solutions until we have some of the answers, and some of the data. So what we’re out here is with two vessels now, over a 30 day period, really looking for that data – water depth, leadings and temperatures and flows and salinity – to see how the plastics and the material, the debris might move around in the ocean. We will, later, be doing some analysis on the material, science of the plastics, to see if it’s recognizable by satellite. Because, obviously, without satellite imagery, it’s impossible to know exactly where the bigger masses are. You know, ‘how to clean it up,’ is going to be a very tricky thing, because the oceans are so big and these particles are not big. It’s all going to come back to what we’re doing on land, really, and the land policies for different ways to bring in better recycling and rebate programs to get a lot of the plastic that is out there today to be reused instead of simply thrown away, and so it doesn’t get into the rivers or the oceans in the first place.

Doug Woodring is a co-founder of Project Kaisei. He spoke with The Environment Report’s Lester Graham.

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Heading Out on a BioBlitz

  • JP Anderson, Indiana Dunes National Lakeshore Park Ranger, at the start of National Geographic and the National Park Service's 2009 BioBlitz at The Indiana Dunes National Lakeshore. (Photo by Enrique Pulido)

The National Park Service has a slightly embarrassing problem. It manages some of the nation’s most
environmentally valuable land – but it doesn’t have a full account of plant and animal species that live in
the parks. One remedy is the BioBlitz. A BioBlitz is a kind of whirlwind count of all the species in a
specific place. The Park Service has been co-sponsoring BioBlitzes with National Geographic. We sent
Shawn Allee to their latest:

Transcript

The National Park Service has a slightly embarrassing problem. It manages some of the nation’s most
environmentally valuable land – but it doesn’t have a full account of plant and animal species that live in
the parks. One remedy is the BioBlitz. A BioBlitz is a kind of whirlwind count of all the species in a
specific place. The Park Service has been co-sponsoring BioBlitzes with National Geographic. We sent
Shawn Allee to their latest:

The Indiana Dunes National Lakeshore is spread along Lake Michigan’s southern shoreline.

During this BioBlitz, scientists and volunteers fan out in teams to search the sand dunes, woods, and
grassland around here.

At first, the mood’s high, but then it rains kinda hard.

We’re supposed to be counting species for 24 hours, but at first, we can’t even get out of our cars.

(ring of a phone)

“Hello? Yeah. We’re stuck in traffic, here. We came out here and I thought we were going
out in the wrong direction.”

I hitch a ride with Dr. Patrick Leacock. He’s a mycologist, a kind of mushroom expert.

I’m actually lucky to be on his BioBlitz team, because organizers from National Geographic and the National Park Service want people to count all the species
in the park.

And they mean everything – not just plants and animals that are a cinch to find.

Allee: “Are fungi something you feel that the average person doesn’t think about when it comes
to biodiversity?”

Leacock: “Yeah, there’s people, you tell them you study mushrooms, and they talk about their
athlete’s foot, or they think there’s only six different kinds or something like
that.”

Leacock says, in fact, the Indiana Dunes Lakeshore has at least 600 fungi species. He hopes the
BioBlitz team will add to that list.

Leacock: “Here we are.”

Allee: “I’m hunting mushrooms with three trained mycologists and there are six other volunteers on my team here. One of them is Zachary Benes – he’s just 9 years old. But, I gotta say, Dr. Leacock is pretty lucky
to have Zachary on the team – since he’s found the most mushrooms of anyone on the team.”

Benes: “Is it poisonous?”

Leacock: “Nope. A real mushroom.”

Tang: “Yeah.”

Allee: “Looks like you found another one, too. Where’d you find it?”

Benes: “Over there by the wood.”

Leacock: “This is collybia sub-sulphurea. Do you know what sulfur means?”

Benes: “No.”

Leacock: “It’s a kind of a yellow-orange color. So, this might be a new record for the dunes. So that’s a good one. Was it
just the one?”

Benes: “Yeah. Just the one.”

Leacock: “It’s in good shape.”

Along the trail, I chat with Yaya Tang. She’s one of the other mycologists on the team.

Tang says she’s glad to see BioBlitz volunteers search for elusive species of bats, bugs, and fungi.

“I feel like that’s an issue with biodiversity in general. Where people care about things that are cute or
that they see immediately. Like, there’s insects, too, that don’t get a lot of attention.”

Allee: “Dr. Leacock, we’re pretty much finished here. You got this container of many varieties
of fungi we’ve collected within an hour, would you have been able to get this many
yourself? If you had come out here on your own?”

Leacock: “No. The more people you have searching, that helps a lot. Different people will see
different things, too, I think. So we’ve 14 or 15 things right in my box. We have two that might be new
records for the dunes.”

The BioBlitz at The Indiana Dunes National Lakeshore lasts another 20 hours.

A few days later, Dr. Leacock writes me.

He tells me volunteers turned up at least one fungi specimen no one had ever seen in the Dunes park.

It’s a small success – enough that National Geographic, the Park Service, and other groups are
planning more BioBlitzes across the country.

For The Environment Report, I’m Shawn Allee.

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Thawing Tundra Speeds Up Warming

  • University of Florida biologist Ted Schuur does field work in the Alaska tundra every summer (Photo courtesy of Ted Schuur)

A report in this week’s journal Nature looks at how thawing ground up North might
impact global warming. Amy Mayer spent some time in Interior Alaska with
scientists at Eight Mile Lake:

Transcript

A report in this week’s journal Nature looks at how thawing ground up North might
impact global warming. Amy Mayer spent some time in Interior Alaska with
scientists at Eight Mile Lake:

Permafrost is ground that’s supposed to be frozen all the time. But for decades it’s been
thawing in places.

When that happens, carbon gets released—potentially contributing to the greenhouse
effect.

Ted Schuur’s a biologist at the University of Florida but he spends his summers doing
experiments near Healy, Alaska.

I tagged along during some field visits.

I met Schuur when we were both living in Fairbanks. He lives far away now, but loves
Alaska. You only work here year after year if you do. Summer field work is brutal – tons
of mosquitoes and you work all the time because the sun doesn’t set.

Pretty soon, we’re there.

“This has to be one of my more photogenic field sites that I ever worked at.”

Tundra surrounds us. We’re just north of the Alaska Range. I can see the snow-capped
peaks. We change into rubber boots, pick up our packs, and, after a few steps, we’re on
the tussocks.

Alaskans often say walking on tussocks is like balancing on basketballs. It’s not easy. If
your feet slip off, they get wet. Schuur’s tall and used to this, so he goes faster than me,
and with less bumbling.

Soon, we’re balancing on lumber instead. Schuur and his group try to protect the areas
where they work with narrow boardwalks.

“When we first came out here, we put these boardwalks that we’re walking on now, big
10 feet pieces of lumber – they’re like 2x6s or 2x8s. But we don’t really want to walk on
the tundra because we come here a lot and you’d end up with a trail in no time and
destroy vegetation.”

Schuur knows trudging across the tundra damages it and he tries to minimize that harm.
But in order to answer his questions about the potential greenhouse effect from thawing
permafrost, he has to dig in.

Schuur saws into the tundra with a bread knife.

“It’s very satisfying. It’s like cutting a big cake – though this is a cake with lots of roots in it.”

He cuts up the plants and packs the roots and the tops into jars.

“We’re going to measure respiration of plants.”

Schuur uses a machine to scrub out the carbon from the air that’s in the jars. The plant
tops and roots will continue to respire carbon dioxide until they die. Later, he’ll use fancy
equipment to “date” the carbon that’s left.

He needs the age of the carbon because when he finds older carbon he knows it’s only
recently escaped the frozen ground. That makes it extra in the system.

At first, Schuur learned, new carbon coincides with more plant growth that uses up the
addition. That means no greenhouse effect.

But, later, the permafrost keeps thawing, more old carbon becomes available, and plant
growth just can’t keep up. That means, carbon dioxide ends up in the atmosphere from
the thawing permafrost – just like it does from burning coal or gasoline.

The thawing may ultimately be a bad thing, but to understand and explain it further,
Schuur wants to document it – or even cause some. Next, he says…

“As strange as it seems, I would love to thaw permafrost on a large scale,
experimentally.”

The dilemma, of course, is that causing a thaw means contributing to – in a small way –
a process that might damage or destroy the ecosystem. But we all emit carbon dioxide,
just by driving.

“Even as I do that and I do an experiment where I melt out a little bit of the permafrost, I
think we’re generating this information that’s helping society answer these huge
questions.”

Schuur says the amount of tundra he’d sacrifice is tiny relative to the whole circumpolar
region, where tons of carbon waits in ground that is frozen now but could eventually
thaw.

For The Environment Report, I’m Amy Mayer.

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Uncovering the Baby Mammoth

The National Geographic Channel is airing a documentary called “Waking the Baby Mammoth” this Sunday. The discovery of an intact baby mammoth carcass is also the cover story of the May edition of the National Geographic Magazine. Lester Graham has more on that:

Transcript

The National Geographic Channel is airing a documentary called “Waking the Baby Mammoth” this Sunday. The discovery of an intact baby mammoth carcass is also the cover story of the May edition of the National Geographic Magazine. Lester Graham has more on that:

(National Geographic) “This is the story of a nomadic reindeer herder, an extinct baby wooly mammoth, and a team of scientists on a quest to learn her secrets…”

One of the scientists on that quest is Dan Fisher. He’s a paleontologist at the University of Michigan.

This nearly 40,000 year carcass is the most complete baby mammoth ever discovered. The scientists named it Lyuba.

Fisher flew to Russia two years ago to get his first look at the mammoth, an animal that’s been extinct for thousands of years.

“It’s overwhelming really to feel the privilege of getting to be that close to something that does hold so many answers to questions many people have.”

Graham: “This was a fascinating find, but I wonder how much has it added to our knowledge of that period.”

“What it tells us about the period is that it was really a wonderful time to be a mammoth – to be a large mammal – on the open steppes of the high north.”

(National Geographic) “For paleontologists this is a time capsule from the Ice Age. When Lyuba lived, the mammoth steppe was at its peak. It was rich with vegetation that sustained millions of woolly mammoths for hundreds of thousands of years.”

An autopsy of the baby mammoth revealed a lot about where she died – 40,000 years ago a dry grassland. Today it’s a frozen tundra in Siberia.

Dan Fisher says the well-preserved carcass still had traces of what Lyuba ate.

“It’s remarkable that we can take evidence that’s with us today, that’s at our fingertips and generate from that new understanding that can give us perspective on big questions like extinction and climate change, issues that we certainly will have to continue to face as we deal with other endangered species and with the future of our own civilization and planet.”

Fisher says the mammoth remains help add to our understanding of a related animal still around today, the elephant. And they help us better understand our impacts on other endangered species.

And Fisher says learning more about the climate 40,000 years ago can help us understand one other thing.

“We want to, of course, understand the Earth’s climate system better and one of the ways we can test the computer models that help us to project patterns of climate change into the future is to essentially try them out on the past. The past is essentially the training wheels for learning to refine these models. So, information from Lyuba and other mammoths can help us to develop a better understanding of how the Earth’s climate system works.”

(National Geographic) “Dan Fisher and his colleagues will continue to unravel Lyuba’s secrets and to search for reasons why mammals went extinct at the end of the Ice Age.”

The National Geographic program indicates research continues to reveal a lot about Lyuba’s life, and her death, which the scientists begin to piece together in the documentary.

For The Environment Report, I’m Lester Graham.

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Citizen Scientists Track Climate Change

  • Reporter Sadie Babits is tracking the blooming of a lilac tree, as part of a "citizen scientist" project that will document climate change. (Photo courtesy of Wikimedia Commons)

Scientists are asking citizens to pay attention to plants this spring. They want you to report everything from leaf buds to blossoms. Scientists want those observations from right in your backyard to better understand how climate change is affecting plants and trees. Sadie Babits liked the idea and signed up:

Transcript

Scientists are asking citizens to pay attention to plants this spring. They want you to report everything from leaf buds to blossoms. Scientists want those observations from right in your backyard to better understand how climate change is affecting plants and trees. Sadie Babits liked the idea and signed up:

You know, I found it really isn’t hard to be a citizen scientist.

I’m on the website for Project Budburst. It’s a nationwide effort to get people out into their backyards to track spring flowers. All I have to do is to pick a plant or tree to keep an eye on and then report my findings.

I’m thinking I’ll check out the lilac trees in my neighborhood here in Portland. But before I head out, I need some advice.

So I called Sandra Henderson. She’s busy these days directing Project Budburst at the University Corporation of Atmospheric Research.

“Hey Sadie.”

I reach Henderson at her office in Boulder, Colorado.

What advice do you have for me, a first citizen scientists observing phenology?

“The ideal thing to do is get a sense of when lilacs in your case in Portland, Oregon are expected to have different pheno events.”

Good thing I looked up phenology before calling Henderson. Basically it means nature’s calendar – the timing of when cherry blossoms bloom or a robin builds a nest.

And these life cycles of plants and animals are sensitive to changes in climate.

“Plants provide a wonderful context for understanding changes to the environment and they certainly respond to changes in temperature and precipitation, things that climate scientists are very interested in.”

Scientists can’t be in everyone’s backyard. That’s where volunteers come in. Last year some five thousand people across the country reported their observations to Project Budburst. That information now is the foundation for an online database that includes everything from dandelions to ponderosa pines.

So after walking through our neighborhood and seeing a lot of trees that have already flowered, I’ve decided that these lilac trees outside of our house are perfect for watching because they haven’t flowered yet and there are leaf buds all over the branches. And here’s a branch and the leaf buds are huge and they are just starting to unfurl.

Now that I’ve found my lilac tree to watch, I can report today’s findings.

Really that’s it. Scientists are finding out a lot of interesting things. For example, forsythia in Chicago are blooming a week earlier. These simple observations will eventually create a snapshot of how climate change is affecting plants across the U.S.

For The Environment Report, I’m Sadie Babits.

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