Exxon Valdez oil spill hasn't ended

Twenty five years ago on March 24, more than 11 million gallons of crude oil spilled into Alaska's Prince William Sound after Capt. Joseph Hazelwood ran the Exxon Valdez into Bligh Reef.

An Exxon Valdez oil spill worker recovers and cleans a bird covered in crude oil. At least 1,000 ducks and 250,000 seabirds were killed by Exxon Valdez crude oil, according to studies.

Workers dry off a sea otter after it was cleaned up. About 2,800 sea otters died the first year after the spill -- right afterward 1,000 carcasses were found -- and hundreds more have died since from digging clams in beaches that were still contaminated with oil.

A Valdez worker wipes oil off the rocks on the shoreline.

A cleanup worker checks gunk trapped by a floating boom in the Prince William Sound after the spill.

A fisherman inspects a dead California gray whale covered in oil on the northern shore of Latoucha Island, Alaska.

A worker demonstrates the thick coverage of the toxic crude oil washed up on Smith Island, Alaska.

A responder shoots low-pressure hot water on an oil-soaked beach at Eleanor Island, Alaska.

Volunteers bathe oil-covered birds in buckets filled with water and dish detergent.

The oil from the Exxon Valdez spread through the Sound and out into the Gulf of Alaska, damaging over 1,300 miles of some of the most remote, wild shoreline in this country.

Tugboats tow the Exxon Valdez off Bligh Reef to a harbor for repair and salvage efforts, two weeks after the beginning of the oil disaster. The tanker changed names and owners several times, and was bought in 2012 by an Indian company, which scraps ships for steel and spare parts.

Capt. Joseph Hazelwood, center, stands with his attorney during his arraignment on fugitive charges stemming from the grounding of the Exxon Valdez. An Alaska jury cleared him on a felony charge but he was convicted of negligent discharge of oil, a misdemeanor, for which he performed community service.

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• 25 years ago, Exxon Valdez spilled 11 million gallons of oil into Alaska's Prince William Sound


• Marybeth Holleman: Animals, coastal ecosystem damaged; oil still pollutes beaches


• She says no matter how we make drilling, tankers, pipelines safe, risk will never be zero


• Holleman: We need to reduce dependence on oil; stopping drilling in the Arctic is a first step

Editor's note: Marybeth Holleman is the author of "The Heart of the Sound," a part-memoir, part exploration of the Prince William Sound and the effects of the Exxon Valdez spill. She is co-author of "Among Wolves," and co-editor of Crosscurrents North. The CNN documentary "Oil and Water: The Exxon Valdez Wreck" airs Tuesday, March 25, at 10 p.m. ET.

(CNN) -- Twenty-five years ago on March 24, the oil tanker Exxon Valdez slammed into Bligh Reef and spilled more than 11 million gallons of crude oil into the cold, clear waters of Alaska's Prince William Sound -- one of the "last best places" on Earth. The oil charged through Prince William Sound and out into the Gulf of Alaska, damaging more than 1,300 miles of some of the most remote, wild shoreline in this country.

This happened 25 years ago, so we might note the anniversary as we do any other historical event. That, however, would imply that the oil spill is over. It's not, and likely never will be.

The sound's coastal ecosystem is permanently damaged. Thousands of gallons of Exxon Valdez oil still pollute the beaches; this oil is still toxic and still hurting the ecosystem near the shore.

The government considers, as of 2010, only 13 of the 32 monitored wildlife populations, habitats and resource services that were injured in the spill as fully "recovered" or "very likely recovered." Some are still listed today as "not recovering." This includes a pod of orcas, which lost 15 of its 22 members after the spill, and has not produced a calf since. Given only one older female is left, scientists are certain that this unique pod of orcas will go extinct -- it's just a matter of time. The government conclusion is that "there appears to be no hope for recovery."

The "not recovering" list also includes Pacific herring, one of the sound's keystone species. Once the source of a vibrant commercial fishery, herring declined so precipitously that a fishery closed, and has not reopened.

Once the source of a vibrant commercial fishery, herring declined so precipitously that a fishery closed, and has not reopened.

Marybeth Holleman

Eight inches long, herring once swam in schools of a million or more, a sudden flash of their silver undersides confusing predators. In April, their spawning turned the bays and lagoons milky white. More than 40 species -- bald eagles, brown bears, seals, humpback whales, tufted puffins, murres -- depend on these small fish.

Those of us who knew the sound before the spill, the "bright and spacious wonderland" described a century ago by John Muir's expedition, and who spend time in the magnificent coastal wilderness that remains, chafe at the idea of passing this 25th anniversary off as merely a historical event, of simply noting the date and then returning to business as usual.

Persistent oil poisoning, and a cascade of ecological effects, continue. There's not much we can do now for Prince William Sound, short of protecting it from more harm. But we can keep from repeating our mistakes elsewhere. This is, after all, why we pay attention to history.

Unfortunately, we still haven't learned the biggest lesson of all from the Exxon Valdez oil spill: The only real solution is to stop using so much oil.

Whether it's Prince William Sound or the Gulf of Mexico, seldom is more than 10% of the spilled oil recovered. This will be especially true in Arctic waters. And regardless of how safe we make oil drilling, tankers, or pipelines, we'll never reduce spill risk to zero.

But the larger reason to reduce our dependence on oil is this: Even if we as a society don't care about oil spills destroying natural environments, we've got to care -- eventually we will all care -- about how burning this oil is destroying our environment through climate change.

As the south coast of Alaska struggles to recover from one spill a quarter of a century later, Alaska's polar bears are drowning from lack of Arctic sea ice.

No wonder one of OPEC's founders ... once called oil 'el excremento del diablo,' or the devil's excrement.

Marybeth Holleman

It's a sad irony that the push for Arctic oil drilling has reached an all-time high. Right now, as the polar bears' ice shrinks, we are trying at a fever pitch to pull the very substance out of their ocean home that, when burned, will destroy their ocean home. No wonder one of OPEC's founders, Juan Pablo Pérez Alfonso, once called oil "el excremento del diablo," or the devil's excrement.

The best use of this anniversary is to do better, both by ourselves and the rest of the animal world with whom we share our planet. Halting oil drilling in the Arctic would be a clear first step toward doing better. It's time for President Obama to take steps away from the "all of the above" energy policy and move us forward on a path to a clean energy future.

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The opinions expressed in this commentary are solely those of Marybeth Holleman.