Algae piles up thigh-deep in places – and could keep water murky for weeks
A woman running on a Gold Coast beach has been rescued after becoming stuck in masses of cornflake seaweed that has piled up thigh-deep in places.
A seaweed expert, Pia Winberg, said the bloom of Colpomenia – also known as sea potatoes, oyster thief or cornflake seaweed – was not unusual for this time of year.
Continue reading...Plan aims to allow tuna population to recover from overfishing, but conservationists say endangered mako shark has been overlooked
Conservationists welcomed “long overdue” catch limits set this week for bigeye tuna and other Atlantic species, but criticised weak measures to rebuild endangered mako shark populations.
The International Commission for the Conservations of Atlantic Tunas (ICCAT) – responsible for the management of tuna and tuna-like species and bycatch including sharks and rays – set new catch limits for bigeye tuna at a meeting in Palma, Mallorca, this week. It also agreed to reduce juvenile fish mortality by limiting certain fishing practices.
Continue reading...Couple stumble upon unusual occurrence that is result of very particular weather conditions
A rare collection of “ice eggs” has been spotted in Finland, a phenomenon experts say only occurs in highly particular conditions.
Risto Mattila, who photographed the eggs, said he and his wife were walking along Marjaniemi beach on Hailuoto island on Sunday when they came across the icy balls covering a 30-metre (98ft) expanse of shoreline.
Continue reading...Carbon emissions make sea more acidic, which wiped out 75% of marine species 66m years ago
Ocean acidification can cause the mass extinction of marine life, fossil evidence from 66m years ago has revealed.
A key impact of today’s climate crisis is that seas are again getting more acidic, as they absorb carbon emissions from the burning of coal, oil and gas. Scientists said the latest research is a warning that humanity is risking potential “ecological collapse” in the oceans, which produce half the oxygen we breathe.
Continue reading...Floating boom finally retains debris from the Great Pacific Garbage Patch, creator says
A huge floating device designed by Dutch scientists to clean up an island of rubbish in the Pacific Ocean that is three times the size of France has successfully picked up plastic from the high seas for the first time.
Boyan Slat, the creator of the Ocean Cleanup project, tweeted that the 600 metre-long (2,000ft) free-floating boom had captured and retained debris from what is known as the Great Pacific Garbage Patch.
Continue reading...PM trumpets his country’s achievements in address to UN general assembly
Scott Morrison signalled that Australia is unlikely to update its emissions reduction commitments under the Paris agreement before a speech to the UN in which he declared that the media was misrepresenting the country’s climate change record.
During a press conference before his UN speech at a recycling facility in Brooklyn, the prime minister said he wouldn’t characterise “misrepresentations” about Australia’s climate stance as fake news.
Continue reading...Papua New Guinea out of pocket $157m from failed attempt at mining material from deep-sea vents as opponents point to environmental risk
The “total failure” of PNG’s controversial deep sea mining project Solwara 1 has spurred calls for a Pacific-wide moratorium on seabed mining for a decade.
The company behind Solwara 1, Nautilus, has gone into administration, with major creditors seeking a restructure to recoup hundreds of millions sunk into the controversial project.
Continue reading...Activists say stinking sludge is linked to nitrates in fertilisers from intensive farming
André Ollivro stepped carefully down the grassy banks of an estuary in the bay of Saint-Brieuc, Brittany, not far from his beachfront cabin. The pungent smell of rotting eggs wafting from decomposing seaweed made him stop and put on his gas mask. It was a strange sight in what is usually a tourist hotspot.
“You can’t be too careful,” said the 74-year-old former gas technician, who is leading the fight against what has come to be known as France’s coastal “killer slime”.
Continue reading...Plastic pollution has entered the fossil record, research shows
Plastic pollution is being deposited into the fossil record, research has found, with contamination increasing exponentially since 1945.
Scientists suggest the plastic layers could be used to mark the start of the Anthropocene, the proposed geological epoch in which human activities have come to dominate the planet. They say after the bronze and iron ages, the current period may become known as the plastic age.
Continue reading...The 150 sq km field of floating rock was created by an underwater volcanic eruption near Tonga
A giant raft of pumice, which was spotted in the Pacific and is expected to make its way towards Australia, could help the recovery of the Great Barrier Reef from its bleaching episode by restocking millions of tiny marine organisms, including coral.
The pumice raft, which is about 150 sq km, was produced by an underwater volcano near Tonga. It was first reported by Australian couple Michael Hoult and Larissa Brill, who were sailing a catamaran to Fiji, on 16 August.
Continue reading...Rubbish has been washing up on its isolated beaches in the Pitcairn chain at a rate of several thousand bits of plastic a day
Henderson Island, uninhabited and a day’s sea crossing from the nearest sign of civilisation, should be an untouched paradise.
Instead its beaches, which were awarded Unesco world heritage status in 1988, are a monument to humanity’s destructive, disposable culture.
Continue reading...South Australian man and his son found the bottle, which was dropped from an ocean liner by 13-year-old Paul Gilmore in 1969
The British author of a message in a bottle that recently washed up on the South Australian coast after more than half a century has been found – and he is currently out to sea, his sister says.
South Australian man Paul Elliot and his son Jyah told ABC radio they found the bottle on the Eyre Peninsula’s west coast recently while fishing.
Continue reading...Scientists reconstruct extinct species using fossils found in northern Mali from ancient seaway
Some of the biggest catfish and sea snakes to ever exist lived in what is today the Sahara desert, according to a new paper that contains the first reconstructions of extinct aquatic species from the ancient Trans-Saharan Seaway.
The sea was 50 metres deep and once covered 3,000sq km of what is now the world’s biggest sand desert. The marine sediment it left behind is filled with fossils, which allowed thescientists who published the study to build up a picture of a region that teemed with life.
Continue reading...Thwaites glacier is likely to thaw and trigger 50cm sea level rise, US study suggests
Antarctica faces a tipping point where glacial melting will accelerate and become irreversible even if global heating eases, research suggests.
A Nasa-funded study found instability in the Thwaites glacier meant there would probably come a point when it was impossible to stop it flowing into the sea and triggering a 50cm sea level rise. Other Antarctic glaciers were likely to be similarly unstable.
Continue reading...In the world’s northernmost town, temperatures have risen by 4C, devastating homes, wildlife and even the cemetery. Will the rest of the planet heed its warning?
Continue reading...We make good-faith efforts to help the planet by recycling, but what we really need to do is even simpler
Did you ever decide to get off a jammed freeway and take the backroads even though deep down you knew that it wouldn’t be any faster? Are you constantly switching to the faster lane on a busy freeway even though you notice that cars sticking to their lanes keep catching up with you?
Both are examples of action bias, the phenomenon in which people prefer doing something over doing nothing, even if the likely outcome of the action is worse than the outcome of inaction. Research has shown that actively managed portfolios tend to do worse than passive investments. And one study found that soccer goalkeepers prefer to jump left or right during a penalty kick, even though the best thing would be to stay put in the middle.
Continue reading...Floating boom is designed to trap 1.8 trillion items of plastic without harming marine life – but broke apart last time
A floating device designed to catch plastic waste has been redeployed in a second attempt to clean up a huge island of garbage swirling in the Pacific Ocean between California and Hawaii.
Boyan Slat, creator of the Ocean Cleanup project, announced on Twitter that a 600-metre (2,000ft) long floating boom that broke apart late last year was sent back to the Great Pacific Garbage Patch this week after four months of repair.
Continue reading...Voracious fish are bleeding into ocean ‘like a cut artery’, says top marine biologist
Cyprus has held its first organised cull of lionfish after numbers of the invasive species have proliferated in recent years, threatening the Mediterranean ecosystem and posing a venomous danger to humans.
“They’re actually very placid,” said Prof Jason Hall-Spencer, a marine biologist, after spearing 16 of the exotic specimens in the space of 40 minutes in the inaugural “lionfish removal derby” off the island’s southern coast. He added: “The problem is they are not part of the natural ecosystem and we are seeing them in plague proportions.”
Continue reading...Debris on Cocos (Keeling) Islands was mostly bottles, cutlery, bags and straws, but also included 977,000 shoes, study says
On the beaches of the tiny Cocos (Keeling) Islands, population 600, marine scientists found 977,000 shoes and 373,000 toothbrushes.
Related: ‘Monstrous’: Indigenous rangers’ struggle against the plastic ruining Arnhem Land beaches
Continue reading...A retired naval officer dove in a submarine nearly 36,000ft into the deepest place on Earth, only to find what appears to be plastic
On the deepest dive ever made by a human inside a submarine, a Texas investor found something he could have found in the gutter of nearly any street in the world: trash.
Victor Vescovo, a retired naval officer, made the unsettling discovery as he descended nearly 35,853ft (10,927 meters) to a point in the Pacific Ocean’s Mariana Trench that is the deepest place on Earth, his expedition said in a statement on Monday. His dive went 52ft (16 meters) lower than the previous deepest descent in the trench in 1960.
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