A search is underway for the body of a surfer who is believed to have been killed in a shark attack off the coast of a South Australian town.

Emergency services responded to reports of an attack off the coast of Granites Beach in Westall Way Loop near Streaky Bay about 10.20am today.

9News understands about six surfers were in the water but the 55-year-old man paddled out wider than the rest of the group.

READ MORE: Hamas issues chilling hostage video

A witness on a clifftop said they saw the shark attack the man, which left him floating before he was attacked again.

The witness believes the shark was about 4.5 metres in length.

"Eyre and Western Police immediately responded and initiated a search with the assistance of Police Water Operations, PolAir, State Emergency Service (SES) and local volunteers," South Australia Police said in a statement.

"The man's body is yet to be found and the search will continue through to day's end," police said.

The beach is popular among surfers on the Eyre Peninsula.

It's also known for having a large population of great white sharks.

This is the third shark attack off the South Australian coast this year.

Streaky Bay is about 700 kilometres from Adelaide, on the state's far west coast.

The man spent the money on clothing and gadgets for himself.

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Scientists have warned our planet has three years less than previously thought to avoid a long-feared climate change landmark that will bring about more catastrophic weather, destroy most coral reefs, and cause significant water shortages.

Warming of 1.5 degrees compared to pre-industrial times has been earmarked as a crucial goal in the fight against climate change, including in the 2015 Paris Agreement.

But according to a new study published in Nature Climate Change, that will be unavoidable by early 2029 – little more than five years from now – if global emissions from fossil fuels continue at their current rate.

READ MORE: 'Time is up': Earth's vital signs have never been worse, climate scientists warn

The authors of the study calculated what's known as the remaining carbon budget (RCB) for 1.5 degrees – the amount of carbon that can be released into the atmosphere for there to be a 50 per cent chance of limiting warming to that temperature.

In 2021, a United Nations report estimated the RCB was about 500 billion metric tonnes – enough to last until 2032.

The new study argues the RCB was just 250 billion metric tonnes at the start of the year.

With the planet emitting about 40 billion per year, warming of 1.5 degrees will be locked in by early 2029.

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However, with global emissions still rising – although they appear to be starting to plateau – the mark may be reached even quicker.

The reason for the smaller RCB is the world has been removing smoky aerosol pollutants in the atmosphere.

While a positive step, those pollutants slightly cool Earth and mask the effects of burning fossil fuels, so the planet warms marginally faster without them.

Regardless, the planet is preciously short of time to avoid hitting 1.5 degrees of warming.

Once Earth reaches that measure, the risk of extreme weather and other catastrophes increases, as the world will likely lose most of its coral reefs, a key ice sheet could kick into an irreversible melt, and water shortages, heat waves and death from extreme weather dramatically increase, according to an earlier United Nations scientific report.

READ MORE: Why it could take 2 million Aussies changing jobs to reach net zero

"We have got to the stage where the 1.5 Celsius carbon budget is so small that it's almost losing meaning," climate scientist Glen Peters of the Norwegian CICERO climate institute, who wasn't part of the research, said.

"If your face is about to slam in the wall at 100 miles per hour, it is sort of irrelevant if your nose is currently one millimetre or two millimetres from the wall… we are still heading in the wrong direction at 100 miles per hour."

Climate scientist Bill Hare of the Climate Action Tracker said "breaching the 1.5-degree limit does not push the world over a cliff at that point, but it is very much an inflection point in increasing risk of catastrophic changes".

Even though the carbon budget looks set to run out in early 2029, that doesn't mean the world will instantly hit 1.5 degrees of warming – that could happen a bit earlier or as much as a decade or two later, but it will happen once the budget runs out, study lead Robin Lamboll said.

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Despite 1.5 degrees of warming looking unavoidable, the researchers said it was critical for the planet to quickly reduce emissions so higher and even more catastrophic thresholds are avoided.

The study said the carbon budget with a 50 per cent chance to keep warming below 2 degrees is 1220 billion metric tons, which is about 30 years.

There are about 23 and 12 years left for a 66 and 90 per cent chance of avoiding that mark respectively, the study says.

"We don't want this to be interpreted as six years to save the planet," study co-author Christopher Smith, a University of Leeds climate scientist, said.

"If we are able to limit warming to 1.6 degrees or 1.65 degrees or 1.7 degrees, that's a lot better than 2 degrees. We still need to fight for every tenth of a degree."

– With Associated Press

2022 was a bumper year for people moving to Australia's shores, new data has revealed.

As of June 30 last year, nearly a third of Australia's population – 29.5 per cent – was born overseas, according to a new set of migration data from the Australian Bureau of Statistics (ABS).

The data shows the country's overseas-born population grew by 155,000 people between June 2021 and June 2022.

READ MORE: Population hits new high in post-pandemic migration influx

However, the number of people born overseas last was still slightly less than in 2020, when 29.9 per cent of Australians were born overseas.

Jenny Dobak, the ABS' head of migration statistics, confirmed the spike said last year saw Australia's number of overseas-born residents increase by 2.1 per cent.

"Western Australia had the highest proportion born overseas at 34 per cent, while Tasmania had the lowest at 16 per cent, in 2021," she said.

The top three countries of birth for Australia's overseas population are unlikely to come as a surprise,

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England held its place as the largest country of birth for Australians with 961,000 migrants – a record it has held since it colonised Australia. 

Those born in India were the second largest group of people born overseas, with 753,000 migrants in 2022. 

Meanwhile, people born in China made up the third-largest share of overseas-born Australians at 597,000. According to the 2022 data, that number actually decreased last year, after reaching a peak in 2019.

Together, those three countries accounted for over one-third of all the migrants living in Australia last year. 

New Zealand, the Philippines, Vietnam, South Africa, Italy and Nepal rounded out the top ten.

Overseas-born population over the years

According to the first country-wide census in 1891, 32 per cent of the population were born overseas, reflecting high levels of immigration in preceding years. 

The proportion fell to its lowest level of 10 per cent in 1947 – mainly due to lower levels of migration during World War I, the Great Depression and World War II. 

The proportion then rose rapidly as a result of higher levels of post-war migration.

Since then, there has been a steady increase in the overseas-born population until 2021.

In 2021, the number and proportion of migrants declined. 

This has been attributed to the COVID-19 travel restrictions and the resulting impact on overseas migration, both to and from Australia. 

There was a decrease in arrivals of people born overseas immigrating to Australia, as well as a decrease of people born in Australia departing to live overseas.

This set of figures all come from data collected between June 2021, and June 2022.

In other recent population news, Australia's population hit 26.5 million people in March 2023, thanks to a post-COVID-19 pandemic migration boom, according to the (ABS).

The nation's population grew by 2.2 per cent in the 12 months to March 2023, with most of this (81 per cent) due to an influx of migrants.

A total of 681,000 people migrated to Australia – more than double the number in the previous year – after all major pandemic-related border restrictions ended in February 2022.

A meticulous rescue operation has resulted in the safe capture of an adventurous sheep who was lost in a Melbourne reservoir for more than six months.

After weeks of planning, Sugar the sheep was safely captured by an expert team of volunteers in Sugarloaf Reservoir in Melbourne's north-east.

The safe recovery of the stranded animal was led by Melbourne Water's water supply operator Georgia Duncan and assisted by volunteers from Vets for Compassion and Forever Friends Animal Rescue Sanctuary.

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"Recognising the importance of ensuring the safety of all animals and preserving wildlife in the community, the team of volunteers promptly sprang into action to rescue the stranded sheep," Duncan said.

After undergoing a much-needed shearing and vet examination, Sugar is enjoying her temporary home at Forever Friends Animal Sanctuary in the Yarra Ranges.

Sanctuary manager Lachlan Barnard said Sugar's rescue showed Forever Friends' commitment to animal wellbeing.

Vets for Compassion's Operations Manager Nicole De Haan said the successful capture "serves as a reminder of the importance of community involvement in safeguarding and protecting animals in need".

Sugarloaf Reservoir is operated by Melbourne Water.

The cast of "Friends" have broken their silence about the death of actor Matthew Perry.

In a statement provided to People on Monday, Jennifer Aniston, Courteney Cox, Lisa Kudrow, David Schwimmer and Matt LeBlanc wrote: "We are all so utterly devastated by the loss of Matthew. We were more than just cast mates. We are a family."

"There is so much to say, but right now we're going to take a moment to grieve and process this unfathomable loss," the statement continued.

READ MORE: How Matthew Perry scored his career-making role on Friends

"In time we will say more, as and when we are able. For now, our thoughts and our love are with Matty's family, his friends, and everyone who loved him around the world."

Perry on died Saturday at his home in the Los Angeles area. He was 54.

While starring for ten seasons in "Friends," one of the most popular sitcoms of all time, Perry was trying to overcome his drug and alcohol abuse.

Los Angeles City Firefighters said they found actor Matthew Perry "unconscious in a stand-alone jacuzzi" when they were called to his home on Saturday.

"A bystander had brought the man's head above the water and gotten him to the edge, then Firefighters removed him from the water upon their arrival," the department said in a statement.

"A rapid medical assessment, sadly, revealed the man was deceased prior to first responder arrival."

READ MORE: Matthew Perry's cause of death listed as 'deferred', meaning more investigation needed

The circumstances surrounding Perry's death are being investigated by the Los Angeles Police Department and the Los Angeles County Medical Examiner, LAFD said.

An autopsy has been conducted, but examiners are awaiting the results of toxicology reports in order to determine Perry's cause of death.

Such reports can take weeks to complete.

More to come …

German Chancellor Olaf Scholz says Hamas must be held accountable for the death of German-Israeli dual citizen Shani Louk and others killed by the militant group in the October 7 attack on Israel.

"The news of Shani Louk's death is terrible," Scholz wrote on X, formerly known as Twitter. "Like many others, she was brutally murdered. This shows the full barbarity behind the Hamas attack – who must be held accountable."

Louk's mother told German news agency dpa earlier Monday (Tuesday AEDT) that she had been informed by the Israeli military of the death of her 22-year-old daughter, who had been missing since the attack.

READ MORE: Former Australian prime ministers release statement to condemn Hamas, caution Israel over Gaza attacks

"This is terror, and Israel has the right to defend itself," Scholz wrote.

The Israeli Ministry of Foreign Affairs confirmed Louk's death earlier in the day.

"We are devastated to share that the body of 23 year old German-Israeli Shani (Louk) was found and identified," the ministry posted on X on Monday.

Louk was at the Nova music festival in southern Israel on October 7 when Hamas breached the border between Gaza and Israel.

READ MORE: Foreign minister says 88 Australians stuck in Gaza

They blocked off the road to the festival from the north and the south, before swarming the sprawling site on foot, videos showed. The militants then encircled the crowds on three sides, gunning them down and forcing them to flee over fields to the east.

More than 260 bodies were found at the Nova festival site itself, according to Israeli rescue service Zaka but, based on CNN's analysis, the total death toll could be even higher.

Louk was kidnapped at the festival and "tortured and paraded around Gaza by Hamas terrorists," the foreign ministry statement said, adding that she "experienced unfathomable horrors."

"May her memory be a blessing," the statement said.

Chilling hostage video released

Hamas has released a short video showing three women who are believed to be captives held by the Palestinian militant group since its terror attack on Israel on October 7.

The hostage video is only the second released by Hamas since more than 200 people were taken into Gaza. It appears to be intended to undermine Israeli Prime Minister Benjamin Netanyahu with pointed criticism over his leadership by the detained women.

The video shows them seated in plastic chairs facing the camera, while the woman in the middle addresses Netanyahu directly with increasing fury.

She makes reference to a press conference by families of the hostages "yesterday," suggesting it was filmed on Monday.

The video comes just days after progress in hostage negotiations fell through, a fact referenced by the speaker who mentions a supposed "ceasefire".

Israeli leaders on Friday dismissed talks of a breakthrough as a rumour as they announced an expansion of the ground campaign.

The woman speaks fluently and does not appear to be reading from a script, but because the women are hostages, the statement could have been made under duress.

"You promised to release us all," she says, suggesting she is aware of hostage negotiations. She finishes with a demand to "free us all," screaming: "Now! Now! Now!"

Relatives of the hostages have named the women as Elena Trupanov, Danielle Alony and Ramon Kirsht. Aloni is the speaker.

The women do not show visible signs of physical mistreatment, but CNN is unable to verify anything about their circumstances or wellbeing.

Netanyahu's office confirmed the names in a brief statement, addressing the women, "who were kidnapped by Hamas who commits war crimes."

"I hug you. Our hearts go out to you and the other abductees. We are doing everything to bring all the kidnapped and missing people home," the office statement read.

Captive female Israeli soldier released

A female Israeli soldier who had been kidnapped by Hamas on October 7 has been released during ground operations in Gaza, the Israel Defence Forces said on Monday.

"Overnight, the soldier PVT Ori Megidish was released during IDF ground operations," the IDF said in a statement, adding, "the soldier was medically checked, is doing well, and has met with her family."