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Study links rapid growth of ocean macroalgae to global heating and nutrient pollution
Scientists have warned of a potential “regime shift” in the oceans, as the rapid growth of huge mats of seaweed appears to be driven by global heating and excessive enrichment of waters from farming runoff and other pollutants.
Over the past two decades, seaweed blooms have expanded by a staggering 13.4% a year in the tropical Atlantic and western Pacific, with the most dramatic increases occurring after 2008, according to researchers at the University of South Florida.
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Experts call for tighter regulation as GPS tracking reveals how people’s behaviour affects the lives of some of the world’s largest birds
Many people look up to admire the silhouette of raptors, some of the planet’s largest birds, soaring through seemingly empty skies. But increasingly, research shows us that this fascination runs both ways. From high above, these birds are watching us too.
Thanks to the development of tiny GPS tracking devices attached to their bodies, researchers are getting millions of data points on the day-to-day lives of these apex predators of the skies, giving us greater insight into where they hunt and rest, and how they die.
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There are so many koalas in some places that food is the issue – while elsewhere populations are threatened by habitat loss. And there are no easy fixes
On French Island in Victoria’s Western Port Bay, koalas are dropping from trees. Eucalypts have been eaten bare by the marsupials, with local reports of some found starving and dead. Multiple koalas – usually solitary animals – can often be seen on a single gum.
Koalas were first introduced to French Island from the mainland in the 1880s, a move that protected the species from extinction in the decades they were extensively hunted for their pelts. In the absence of predators and diseases such as chlamydia, the population thrived.
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Fears of storm surges and flooding, with landslides and volcanic mudflows possible on Luzon
The Philippines is experiencing its first tropical storm of the year. Ada, also known as Nokaen, slowly developed into a tropical storm on Friday, travelling northwards along the east coast over the weekend and bringing torrential rain of up to 200mm a day and maximum wind gusts of up to 65mph near the storm’s centre.
The system is expected to remain a tropical storm until Tuesday as it tracks north-west, though weakening as a result of the incoming north-east monsoon, transitioning back to a tropical depression, which could bring further rain and strong winds enhanced by the monsoon later in the week.
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Frome, Somerset: Get tuned in to the river’s sounds and you’re treated to a symphony of noise, from susurrating hisses to great belches
After three decades living alongside mute waterways in East Anglia, with their soundless glide over clay, I am learning a liquid language here, and all its boulder dialects, as our winter‑filled local stream gushes down its limestone gorge.
My fellow country diarist and wild swimmer Amy-Jane Beer shares my passion for river music. She tells me of her compulsion to listen when fresh water is given a voice by coming to the surface.
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Food produce and other waste has been littering Sussex coastline as capsized shipping containers wash ashore
Coral Evans was walking along the beach in Brighton on Tuesday evening when she came across an unfamiliar sight.
“Hundreds of dust masks had washed up, along with single-use plastic gloves and cans of dried milk,” she said. “It was odd to see in winter – because nothing surprises us in summertime with the amount of people on the beach.”
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Tony Cholerton created Robovacc to inoculate a timid tiger at London zoo – but says it could administer jabs to badgers
It began with the tiger who wouldn’t come to tea. Cinta was so shy that she refused to feed when keepers at London zoo were around, and staff wondered how they would ever administer the young animal’s vaccinations without traumatising her.
So Tony Cholerton, a zookeeper who had been a motorcycle engineer for many years, invented Robovacc – a machine to quickly administer vital jabs without the presence of people.
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A return to nuclear power is at the heart of Japan’s energy policy but, in the wake of the 2011 disaster, residents’ fears about tsunamis, earthquakes and evacuation plans remain
The activity around the Kashiwazaki-Kariwa nuclear power plant is reaching its peak: workers remove earth to expand the width of a main road, while lorries arrive at its heavily guarded entrance. A long perimeter fence is lined with countless coils of razor wire, and in a layby, a police patrol car monitors visitors to the beach – one of the few locations with a clear view of the reactors, framed by a snowy Mount Yoneyama.
When all seven of its reactors are working, Kashiwazaki-Kariwa generates 8.2 gigawatts of electricity, enough to power millions of households. Occupying 4.2 sq km of land in Niigata prefecture on the Japan Sea coast, it is the biggest nuclear power plant in the world.
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Pioneering scheme hopes species that thrived for thousands of years in Irish waters can do so again
The dinghy slowed to a stop at a long line of black bobbing baskets and David Lawlor reached out to inspect the first one.
Inside lay 60 oysters, all with their shells closed, shielding the life within. “They look great,” beamed Lawlor. So did their neighbours in the next basket and the ones after that, all down the line of 300 baskets, totalling 18,000 oysters.
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Some regions of the continent have enough ice to push up sea levels by 15 metres if they all melt, but researchers don’t yet fully understand the consequences
On one side of Dr Ben Galton-Fenzi’s view across the vast Totten ice shelf, the sun sat low on the Antarctic horizon. On the other, a full moon.
The ice shelf is “flat and white”, says Galton-Fenzi. “If there’s cloud around, you lose the horizon.”
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