COMMENTARY

COMMENTARY: Reefs in Peril

Scientist Nancy Knowlton says we can save these beautiful and unique marine ecosystems if we act quickly

By Katherine Cure

Dr. Nancy Knowlton is a coral reef scientist who studies their ecology and evolution, including the impact of climate change. The founding director of the Center for Marine Biodiversity and Conservation at the University of California, San Diego, she is also a professor at Scripps Institute of Oceanography. Her contributions have been crucial to the advancement of coral reef science.

Today, Knowlton holds the Sant Chair in Marine Science, recently awarded by the Smithsonian Institute’s National Museum of Natural History in Washington D.C. Occupying the museum’s first funded chair in marine sciences, Knowlton will provide leadership to the Smithsonian’s Ocean Initiative, an interdisciplinary move to foster greater public understanding of ocean issues.

A chat with Knowlton is like opening a trunk of coral knowledge. The conversation revolved around a recently released article Knowlton co-authored in the journal Science entitled “Coral Reefs under Rapid Climate Change and Ocean Acidification.” The piece presented a dire scenario of increasing decline and loss of coral reefs, based on the best available scientific information and the most positive climate change and carbon emission scenarios of the UN’s Intergovernmental Panel on Climate Change (IPCC).

“Ocean acidification” is a recently introduced term for an observed reduction in seawater pH. It is triggered by the absorption of atmospheric carbon dioxide (CO2), which reacts with naturally occurring carbonate ions in the ocean, to produce carbonic acid. The change in chemical conditions affects corals and other organisms that need carbonates to build their calcium carbonate skeletons. The phenomenon, together with climate change, increases ocean temperatures and more frequent bleaching events might be too much for coral reefs to handle.

E Magazine: The just released Science paper, which you coauthored with 16 of your colleagues from around the world, points to an almost inevitable coming disaster for our reefs.

Knowlton: If we don’t do something to limit CO2 emissions, yes.

How do you see the status of coral reefs in the U.S. in particular? We’re having all these problems globally with bleaching and acidification, but how are our U.S. resources?

Well, the situation in the U.S. isn’t really much better. Some of the reefs in the Florida Keys and the main Hawaiian Islands aren’t in particularly good shape, nor are they all that good in the U.S. Virgin Islands and Puerto Rico. They’re about average for the planet, which is not good. The exceptions are some of the isolated coral reef atolls that the U.S. has jurisdiction over, such as Palmyra Atoll and Kingman Atoll and Jarvis and Howland, the main islands in the Central Pacific. These are really far away from people and therefore haven’t been fished. The northwest Hawaiian Islands also, for that matter, haven’t really been fished and they’re protected. The Northwest Hawaiian Islands are now part of a very large Marine Protected Area, and the other places I just mentioned are protected by the U.S. Fish and Wildlife Service.

You can go dive in those places and the reefs are in very good shape as are the fish populations. So, in some of the far corners of the planet where the U.S. has jurisdiction, reefs are in good shape. But anywhere where there’s substantial human use in the U.S., reefs are in bad shape.

These coral reef areas you mention don’t have a lot of protection, do they? I was reading in another Science paper that in the Florida Keys and the main Hawaiian Islands, the government hasn’t supported programs to increase protection levels.

The Northwest Hawaiian Islands are actually well protected because they’re part of a new largely not-take Marine Protected Area. The Florida Keys have a whole series of different levels of protection but the amount of actual no-take protection, where fishing is prohibited, is relatively small. There’s also water-quality issues; particularly in the Florida Keys. The combined effects for most of the Florida Keys are not good.

Yes, I was talking to someone doing coral reef monitoring there and they are talking about two percent coral cover.

Well, that’s very low. I haven’t heard that figure, but that’s extremely low.

And they blame it basically on water quality.

Well, it’s a combination of things. Some people blame it mostly on water quality. Some people blame it on overfishing. Both have the potential to really destabilize coral communities directly or indirectly. The relative balance of the two varies from place to place. I’m not really an expert on the Florida Keys, so I wouldn’t want to say too specifically what I think is the relative balance of those two culprits. In general, it varies from place to place. Overfishing is a huge problem in a lot of reefs.

But it’s more of a combination of factors isn’t it?

Well it’s usually a combination of factors, and in fact that’s kind of characteristic of the threats to coral reefs. And of course it’s a combination of local factors, namely water quality and overfishing, with global factors, mainly climate change and now acidification.

But, like you were saying, we still see that in more remote and pristine locations, where there is none of these local threats, or reduced local threats, the reefs are doing well.

Yes. And that’s a very important lesson. It means that it’s not hopeless yet, and that by instigating good local care of reefs we can forestall the effects of more global pressures. It buys us time essentially; in terms of dealing with these global pressures, which we do have to deal with. Eventually, as that paper in Science indicates, if we don’t do something about CO2 emissions we’re going to lose reefs. It’s just basic chemistry.

Acidification [caused by absorption of CO2 into ocean water] is actually really scary. If you change the basic chemistry of the ocean, then you just make it very difficult for any kind of skeletal-accreting organism to persist in any kind of healthy condition. So essentially, any organism that secretes a carbonate skeleton can do very little to adapt to high acidity. They just become replaced by organisms that don’t secrete skeletons, which means no coral reefs.

It’s hard to predict what exactly would go extinct, but increasingly you’d get less and less. See, coral reefs are sort of like cities, they’re a kind of balance between growth and destruction, and if you keep reducing growth and increasing destruction, you eventually wind up with nothing left. It’s net growth that is really the key feature. You need to have positive net growth for reefs to persist.

How are scientists rising up to this challenge? How are coral reef scientists trying to incorporate these predictions into their research themes?

A lot of scientists are working in the topic and finding various things that can be done. I am not really arguing that every single scientist should be working on these specific problems. I am a big believer in the combination of basic and more applied research as being the best strategy.

But there are plenty of coral reef scientists that are working on issues of bleaching and disease. The acidification work is really just getting started, because I think it’s only relatively recently that people started to worry about acidification. If you were to go to the Coral Reef International Society for Coral Reef Studies meeting, [they have a big meeting once every four years and the next one is in June 2008 in Fort Lauderdale, Florida] or actually just look at the topics of the sessions, you’d see that there’s quite a bit of attention being paid to studies that relate to the health of coral reefs.

How about collaboration between scientists? I’ve seen more collaboration now, evidenced in this type of multi-authored papers, like the one you just published.

I think that’s true in general, I don’t think that’s specifically related to coral reefs. I think collaboration between scientists is just in general more common, because a lot of these problems require a complex array of expertise, and the best way to do that is instead of having one person try and do everything, have different experts team together to create a product.

How about collaboration between the scientific community, the media and policy makers to really find change?

Well, I think coral reef scientists as a group I can speak for most specifically, are now much more outspoken about what they think is happening to coral reefs and make an effort to communicate with the media and give informal talks or formal testimony before Congress. I think the situation is so dire that most scientists are getting involved in finding solutions.

It’s a very different situation than when I started studying coral reefs back in the 1970s, when people really didn’t worry about the long-term future of corals. People were free to study whatever they thought was interesting, and now I think people feel a kind of moral duty to try and protect reefs. People who study coral reefs usually like them and have an emotional attachment, because reefs are so beautiful, so spectacularly diverse. And most of us who are older than 40 have seen reefs just catastrophically collapse during the course of their professional careers. So, it’s hard to watch all the ecosystems you study go down the drain without being compelled to do something about it. It becomes a moral issue.

Have you seen progress as a result of all this pressure from the scientific community?

Certainly there’s a lot more attention being paid to setting up Marine Protected Areas. There’s more attention associated with water quality and climate change. But I don’t feel that people are really coming to grips with the scale of the problem and what needs to be done. But I think at least people are recognizing that the issue is there. The first step is to recognize that there’s a crisis; the second step is to figure out what to do about it. At least we’re at the stage where people recognize that there’s a crisis.

And there has to be a lot of different areas united to be able to create a change.

It’s not really just the scientists, you know. Scientists don’t make policy. They can say what the science implications are for various policy options, but making policy involves bringing in social scientists, economists, people who study government. There’s a lot of different things that have to be considered when formulating policy. But scientists have an obligation to say what the likely, in this case, ecological consequences of different policy actions or non-actions will be. I think that’s appropriate. Then as citizens, any scientist can say what they think the policy should be, but as scientists their role is to say what science tells you about the consequences of different ways of approaching the problem.

It’s a collaborative effort, isn’t it?

Yes. Scientists as citizens can vote and make their personal views known, but as professional scientists their role should be to advice policy makers and the public of what the consequences of doing A, versus doing B are. What scientists can say very clearly is that if we don’t come to grips with greenhouse gas emissions then we are going to lose reefs.

And you believe that scientists are getting up to speed on reefs so they can advise policy-makers?

Yes. I think there are very few coral reef scientists who aren’t very aware of what’s going on. Decline of coral reefs began in the 1980s, so it’s now been almost 30 years where we’ve been watching reefs going down and down and down. In fact, many students who have gone into studying coral reefs are motivated by wanting to help the situation.

As chair of marine science at the Smithsonian now, what initiatives in particular are you planning to try and deal with this?

Well, I have my own individual research program which is on coral reefs, but I think more broadly, in terms of communicating with the public, the Smithsonian has a lot of opportunities, both in terms of the new Ocean Hall that will be opening in September and also the Ocean Portal, which will be an Internet site where a lot of these issues can be presented. There will also be resources for people wanting to go further. The Ocean Portal is a kind of virtual meeting place for people who want to know more about the ocean and do something about improving ocean health.

What do you think about the restoration initiatives that are being tried with electricity or the implanting of new artificial reefs? Do you think we’re losing time with those experiments or do you think they might contribute to helping?

The one big issue with restoration is that there’s no point in doing anything about it, if you haven’t eliminated the original causes of coral reef decline. Because then the same things will happen with the restored reefs, as with the original reefs. So you have to have created a situation where the environmental conditions are good for the coral communities for restoration to even be considered. Once you’ve done that then, yes, restoration has a role to play.

If a ship hits a reef or a hurricane passes and does a lot of damage in a localized place, the causes of decline are specific events. When they’re no longer an issue, then restoration is quite possible. Big-scale restoration is, even under the best of circumstances, (and this is when the conditions are favorable for reef growth), pretty hard. It’s just very labor intensive. Therefore, when you’re talking about the geographic scale to which reefs have declined, it’s really counterintuitive. I think restoration can work in specific, well-defined situations where the conditions are good for reef growth, but the original cause of decline has been eliminated and the physical scale of the area that’s been degraded is viable. Beyond that, you can try.

People have talked about restoring Caribbean reefs for example, by reintroducing larvae of Diadema antillarum, which is a very important seaweed eating sea urchins that largely died-off during a mass epidemic in the 1980s. The idea is that eventually, once they’re established, they could spread and help reefs beyond their initial site of introduction. Other people have talked about using heat-resistant algal symbionts of corals to make them better able to resist bleaching and some have even talked about vaccinating corals against disease. Actually, some coral diseases can be treated on a local basis, but almost everything you do is very hard to scale up to, say, a Caribbean-wide strategy. Restoration has its role, but in general, we need more attention to improving conditions. That means lowering fishing pressure, improving water quality and dealing with greenhouse gas emissions. It’s more cost-effective than restoration initiatives, unless very specific conditions exist.

So we need local measures coupled with an international campaign to reduce CO2 emissions?

Yes; and reducing CO2 on a national basis, too. The U.S. is a major contributor to greenhouse gas emissions. In the long run, if you don’t do that work, restoration is kind of pointless.

Many countries depend on reefs as food resources, for shelter or for tourism. Would you say that we should be moving human use to other resources? Given this inevitability on the demise of resources, do you think we still have a shot of keeping the lifestyle associated with reefs?

Tourism, if properly managed, can be good for reefs. There are human impacts, but if people can see reefs, they will also realize what they’re losing. Also, many developing countries, which have very extensive coastlines, don’t really have the option of turning to something entirely different. I think tourism can be managed in a way that is reef friendly. So I don’t think we have to give up on tourism, but we have to do tourism in a way that is less destructive to reefs. The biggest problem with tourism on reefs is when you get vast numbers of poorly trained people in the water, stepping on reefs and breaking the corals off, or dropping anchor all over the place. And tourism is a problem if you get a lot of poorly regulated development in terms of resort building on land, which has a lot of effect on water quality. It can also affect fishing, if those resorts are pulling most of the food for the tourists from the reef. So you have to think about it in an integrated way. But there’s actually no reason why you can’t have tourism that is relatively reef friendly.

I was referring not only to tourism, but also to the communities that depend on reef resources for their lives.

Marine Protected Areas offer really important ways of managing reef fisheries so that some places have some a stable large stock of big fish that can keep the species going. So you need to manage reef fisheries, because the natural tendency of people is just to fish until everything is gone. You have to have some kind of management scheme. Marine Protected Areas are one such scheme; there are others that people have argued might work better, particularly in the developing country context. But you have to have something, some kind of way of regulating resource extraction.

But you wouldn’t go yet to the scenario of OK, let’s try and change our whole relationship to coral reefs as humans?

I don’t think that’s realistic. In a developing country context that’s not realistic because those countries need to feed their populations and provide sources of income for them. And in many developed countries coastal resources are a huge part of the economy so it’s just not realistic. And then I think it’s also unrealistic to, say, outlaw people going into the water, even in a developed country context. We can’t make it illegal for people to swim over coral reefs; that’s not realistic. Somehow you need to integrate human wellbeing in its broader sense and reef wellbeing. I don’t think building some kind of wall between people and reefs in a kind of all-or-nothing fashion is a realistic way to think of the future. I think rather we need to think about how we can make human use compatible with healthy reefs. And I think that we have some solutions that are already out there.

So, you still have hope?

Well, I have. You have to have some sort of hope. Hope has more to do with how you feel that human society is going to respond, rather than whether there are solutions. I think all scientists feel that there are solutions. It’s more of a question of political will and that’s where some people are more optimistic than others. But if we actually took the steps necessary to make sure the reefs would persist, then reefs would recover. All is not lost, very little in the way of reef organisms have gone extinct. All the players are there but we have to start doing stuff really fast. We don’t have any more time.

So, you think even with acidification and global warming if we took the steps now, the correct steps, we would have a chance of not losing reefs?

Absolutely.

KATHERINE CURE, who holds a master’s degree in marine biology, studies reefs from her perch as an intern at E/The Environmental Magazine.

CONTACTS: Dr. Nancy Knowlton

 

Tom Lyons

Sarasota Herald-Tribune

Not fooled by 'urgent' warning from former state House speaker

Just under the letterhead announcing the writer as "The Honorable John Thrasher, Former speaker of the Florida House of Representatives," were two words in red.

"Extremely Urgent," they said.

Then came his strident pitch urging the recipients -- people who had signed a petition to put an amendment to the state constitution on the statewide ballot -- to quickly sign a form revoking that signature.

Thrasher told them they had probably signed mistakenly, after being grossly misled about the amendment's true purpose.

Good thing such a reliable statesman was there to help fix their mistake.

"You might not even be aware you signed any such petition," warned the letter, which some Sarasota residents forwarded to me.

Thrasher said those who gathered the petition signatures were the sort who say anything to dupe people. Their usual claim, Thrasher wrote, was that the proposed amendment would "help protect Florida's scenic beauty."

Even the amendment itself is worded as if that were so, but don't be fooled, Thrasher said.

"Nothing could be further from the truth," the former House speaker told them. In fact, that amendment they had signed for would do "the exact opposite," Thrasher warned.

It "would ruin Florida's scenic beauty."

Wow. And that's not all. That horrendous amendment petition the recipients had so unwittingly signed after being tricked by "special interests" would also "result in a huge increase in property taxes for Floridians" and "further increase your utility bills."

Dang.

And get this: That amendment proposal, apparently the nastiest scam of all time, "turns all power over use of Florida's lands to certain 'electors'. ..." and those electors would actually be "cronies" of "The 'special interests' and their slick lawyers."

The readers who sent me Thrasher's warning letter said they were astounded at this effort to scam them.

Thrasher's effort, I mean.

His letter didn't mention that he is now a well-paid lobbyist for Associated Industries, the state's largest business lobby. That's who he is representing with that letter, but the group's name isn't mentioned. The letter refers to an organization generically named "Save Our Constitution," formed by Associated Industries and other business organizations.

That is no environmental group.

The fact is, the Sierra Club and many other environmental groups have been lining up to support the amendment Thrasher is trashing, as he well knows.

Oh, by the way, can you even tell which amendment proposal Thrasher is talking about? From Thrasher's heinous description, I literally wasn't sure.

Turns out he means the one to bar city and county commissions from making changes to comprehensive land use plans -- which developers often want altered for their benefit -- unless voters approve the changes in a referendum. Sometimes it is called the Hometown Democracy amendment.

And who are those ominous "electors," the ones Thrasher is warning you will get so much power, the cronies of the slick lawyers?

That's you, the voters.

There are rational arguments for and against that amendment idea. I'm not taking a side on that. But I agree with Sarasota resident Stuart Barger, one of the people who sent me a copy of the letter.

"I was appalled and deeply angered by the Thrasher letter," because it was "full of lies and deceit," Barger said. Barger said he had signed the petition knowing exactly what it was for, because the ballot summary was stated clearly.

When I told Thrasher about that reaction on Friday, he insisted he's just trying to correct misinformation put out by "professional mercenary petition gatherers."

"We're trying to tell them the real facts," Thrasher said.

Please. I've gotten more factual letters from Nigerian bank clerks offering to put $10 million in my checking account.

Tom Lyons can be contacted at tom.lyons@heraldtribune.com or (941) 361-4964.

 

 

No wildlife preservation at CSX site

Top story of 2007: Housing boom bust

A poll of Florida newspaper and broadcast editors found that the No. 1 story of 2007 was the downturn in the housing market.

BY ANTHONY McCARTNEY

Associated Press

Around the state, a surplus of homes and condos built during an unprecedented housing boom left the market saturated and sluggish. Foreclosures climbed, lifting Florida to the No. 2 spot nationwide in the number of bad mortgages per capita by November.

WIDE-RANGING EFFECTS

The impact of the housing downturn in the last 12 months has been widespread: home owners, lenders, builders and furnishers have all felt the pinch. So too did state lawmakers, who in October slashed $1.1 billion in state spending to compensate for the slowdown.

For those reasons and more, the downturn in the housing market was selected as the No. 1 story for 2007 in a poll of Florida newspaper and broadcast editors.

'This past year has been sort of the `morning after' of the housing boom,'' said Sean M. Snaith, director of the Institute of Economic Competitiveness at the University of Central Florida.

The ''hangover,'' as he likes to call it, has been apparent in many parts of the state.

Tampa and Miami led the nation in September in the decline of the value of sales of existing homes from 2006, according to an analysis by Standard & Poor's.

In the Panhandle, the state's largest private landholder, St. Joe Co., announced that it was ending its new home construction efforts, laying off 760 workers -- more than 75 percent of its workforce -- and trying to sell 100,000 acres of land.

Home sales in October statewide were 29 percent lower than they were the same month in 2006, according to data from the Florida Association of Realtors.

Florida lost 17,500 construction jobs, the first time that sector has lost workers since 1992, according to the Florida Agency for Workforce Innovation.

Residents also are buying fewer cars, jewelry and other luxury items, a sign they feel less wealthy, according to the Legislature's Office of Economic and Demographic Research.

Yet for all the dismal news, Florida's housing decline is due in large part to its unprecedented success in recent years. Speculators hoping to quickly resell houses and condos have damaged the market, as have bad loans that have led to record foreclosure levels.

Economists and real estate professionals expect the market to begin improving by mid-2008.

ANYTHING TO SELL

That's of little solace to those trying to sell their homes now.

In Sun City Center, Jan and Dick Waldron are resorting to all manner of marketing to try to get their home sold: ads on the Craigslist website, putting fliers in this year's batch of Christmas cards, even placing a ''For Sale'' sign on Jan Waldron's car to skirt rules against such signs in her neighborhood's front yards.

The couple built their two-bedroom villa a year ago and are trying to sell it without the help of a real estate agent. At least three dozen other homes nearby are for sale, Jan Waldron said.

The Waldrons want to return to Pinellas County, where Dick Waldron owns a sheet metal company. He had planned to retire, but has continued to work. The result is 120-mile daily commute and a $1,200 gas bill in November.

Dick Waldron said the couple put $80,000 in improvements into their home -- an amount they're willing to lose to sell it quickly.

Pat Dahne, a Coral Gables real estate consultant and former broker, said the old maxim, ''All real estate is local,'' still applies.

Snaith agreed. ''It's not homogenous,'' he said. ``It really does depend on where you are in the state.''

Dahne said it is not uncommon in Miami to find houses selling in certain desirable neighborhoods. But ``very close by, you'll find a street with a ton of houses for sale.''

For many Floridians in 2007, the latter was a much more familiar sight.

Group Sues Over Beach Mouse Habitat

Pahokee cracking down on rampant water theft

By MITRA MALEK

Palm Beach Post Staff Writer

Sunday, December 23, 2007

PAHOKEE — The city is trying to clamp down on what appears to be millions of dollars it has lost from water theft, leaky pipes or problematic city record-keeping before a treatment plant opens for the Glades cities next year.

Pahokee is working with law enforcement and various state agencies to stop the theft. In an August memo from City Manager Lillie Latimore to city commissioners, she said Pahokee was losing $800,000 to $1 million a year because of the problem. That represents about 40 percent of the revenue due, Latimore said.

By comparison, Pahokee's 2007-08 budget was about $8 million.

Vice Mayor Henry Crawford claims that some residents haven't paid their bills for as long as 20 years thanks to illegal hookups that bypass the city's utility system, Latimore's memo says. During an August meeting that included city staff, the Palm Beach County Sheriff's Office and the state attorney's office, Crawford declined to name the culprits but agreed to work with officials to correct the problem.

Crawford didn't return phone calls, and the state attorney's office declined to comment.

But Cpl. Thomas Padgett said the sheriff's office is investigating the issue and several prosecutions are pending.

"People understand that the city of Pahokee is not playing about the theft of water," Padgett said.

In addition, several city employees who were either misreading meters or ignoring them altogether so that people could get free water left their positions earlier this year under pressure from the city, Mayor J.P. Sasser said.

The crackdown started when the city hired a consultant early this year to analyze Pahokee's water system, which shined the light on water theft. Then the sheriff's office got involved. Among their findings:

Residents illegally connected their own pipes to water lines or to neighbors' meters; customers buried or hid meters or released dogs inside gates to prevent meter reading; and some customers said that meter readers accepted cash from them to either reconnect their water or not disconnect their water for overdue accounts.

Equally troubling, dirt and other contaminants can get into pipes when people illegally tap them.

City staff over the years played another part in lost water revenue, mostly because of negligence or incompetence. For example, on many occasions, staff hadn't set up customers' accounts for payment - even after customers repeatedly showed up at city hall asking for that, according to Finance Director Derek Moore.

Sasser on Monday asked state legislators to put the pressure on the Florida Department of Law Enforcement and the state attorney's office to step up their work on the water problem. "They need to be in here doing something about this," Sasser said.

Sasser's plea came days before county commissioners and state legislators discussed the idea of merging Pahokee with Belle Glade and South Bay or bringing all three under county jurisdiction. The concept gained speed because of concern over the Glades cities' finances - in particular, their likely inability to come up with the collective $27 million they are expected to contribute to the $58 million Lake Region Water Treatment Plant, scheduled to bring clean drinking water to the Glades next summer.

Pahokee has one of the county's highest water rates: 4,000 gallons a month plus sewer service costs about $72. The city plans to retrofit its meters with a system that will directly upload readings to city hall, eliminating the need for meter readers.

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