'Signs of hope': Scientists say ocean ecosystems can be restored within 30 years - CTV News | Canada News Media
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'Signs of hope': Scientists say ocean ecosystems can be restored within 30 years – CTV News

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VICTORIA —
We’ve saved the whales, at least some of them.

Now, scientists say, we have a chance to save the rest of the life in oceans by expanding what’s already happening around the globe.

“A lot of us have chronicled ocean depletion over the years,” said Boris Worm, a marine ecologist at Dalhousie University in Halifax and a co-author of a paper published Wednesday in Nature.

“A lot of us, recently, have seen signs of hope. Not to say that the world is getting better wholesale. But there are now hundreds and hundreds of examples that when we do something, the ocean displays remarkable resilience.”

Worm and his 14 international co-writers take care to list the formidable challenges that the world’s oceans face.

At least one-third of fish stocks are over-harvested. A similar fraction of crucial marine habitat has been lost.

The seas continue to get warmer, more acidic, more oxygen-deprived and more polluted. Up to 12 million tonnes of plastic is added every year.

But the paper concludes local and regional conservation efforts are adding up.

Commercial fishing pressure is starting to decline. Controls on fertilizer and sewage dumping instituted years ago are paying off.

In 2000, less than one per cent of the Earth’s oceans had some form of legal protection. Now the figure is almost eight per cent – double that in Canada.

Nearly half of 124 marine mammal species are increasing, some significantly. The proportion of fish stocks that are fished sustainably increased to 68 per cent in 2012 from 60 per cent in 2000.

Species such as humpback whales have been restored to their historic baseline.

Particularly heartening is the rebirth of what Worm calls “marine infrastructure” – habitats such as mangrove swamps, kelp forests and seagrass beds that host much undersea life as well as provide important flood protection for coastal communities.

“Even habitat loss is less prevalent than it was before.”

Worm said hundreds of examples worldwide prove that when governments, industry and communities decide to improve the oceans, they’re successful.

“We see local efforts that lead to local improvements. We have global examples as well, species that are crossing international boundaries, that were close to extinction, that have rebounded – in some cases, manyfold.”

Elephant seals, for example, are a thousand times more abundant than they once were.

Worm and his co-authors conclude that despite all the justified concern over the seas, their ecosystems could be substantially rebuilt by 2050. That’s if – and it’s a big if – governments and societies take the willingness they’ve already shown to address problems and focus it on a big issue: climate change.

“We need to do a bunch of things we’ve been doing all along. But we also have to really deal with climate change.”

It would cost the world up to about $28 billion a year to protect enough ocean to have an impact on half of it, the paper concludes. It says the economic return in fisheries and other industries such as ecotourism would be about 10 dollars for every one invested.

“This is absolutely doable,” Worm said.

“What we really hope is that this provides some good news and more than a glimmer of hope at a time when there’s a lot of despair about facing our global challenges.

“There’s reason to be concerned. But there’s literally hundreds and hundreds of examples of ocean recovery. Let’s scale up what we have done locally to a global level.”

This report by The Canadian Press was first published April 1, 2020

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‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

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It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

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B.C. sets up a panel on bear deaths, will review conservation officer training

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VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

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