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World’s second-largest diamond found in Botswana

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The second-largest diamond ever found – a rough 2,492-carat stone – has been unearthed in Botswana at a mine owned by Canadian firm Lucara Diamond.

It is the biggest find since the 3,106-carat Cullinan diamond, found in South Africa in 1905 and cut into nine separate stones, many of which are in the British Crown Jewels.

The diamond was found at Karowe mine, about 500km (300 miles) north of Botswana’s capital, Gaborone.

Botswana’s government said it was the largest diamond ever discovered in the southern African state.

The previous biggest discovery in Botswana was a 1,758-carat stone found at the same mine in 2019.

Botswana is one of the world’s biggest producer of diamonds, accounting for about 20% of global production.

In a statement, Lucara said the stone was “one of the largest rough diamonds ever unearthed”.

“We are ecstatic about the recovery of this extraordinary 2,492 carat diamond,” said Lucara head William Lamb.

The firm did not give details of the stone’s gem quality or its value.

The diamond was detected with the use of Lucara’s Mega Diamond Recovery X-ray technology, said Mr Lamb.

It has been used since 2017 to detect and preserve high-value diamonds so that they do not break during ore-crushing processes, according to the Miningmx publication.

Lucara has 100% ownership of the mine in Karowe.

Botswana’s government has proposed a law that will ask companies, once granted a license to mine, to sell a 24% stake to local firms if the government does not exercise its option of becoming a shareholder, Reuters news agency reported last month.

(BBC News)

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Gary Anandasangaree appointed Public Safety Minister of Canada

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Sri Lankan-born Gary Anandasangaree has been sworn in as Canada’s new Minister of Public Safety under PM Mark Carney’s cabinet.

A former Minister of Justice and Crown–Indigenous Relations, Anandasangaree will now oversee national security, emergency preparedness, and border protection.

“As I step into this new role, I am grateful to Prime Minister Mark Carney for his trust. I am ready to work with my Cabinet and Caucus colleagues, our partner organizations, and all orders of government to unite, secure, protect, and build Canada,” he has Tweeted.

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Uruguay’s José Mujica, world’s ‘poorest president’, dies

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Former Uruguayan President José Mujica, known as “Pepe”, has died at the age of 89.

The ex-guerrilla who governed Uruguay from 2010 to 2015 was known as the world’s “poorest president” because of his modest lifestyle.

Current President Yamandú Orsi announced his predecessor’s death on X, writing: “thank you for everything you gave us and for your deep love for your people.”

The politician’s cause of death is not known but he had been suffering from oesophageal cancer.

Because of the simple way he lived as president, his criticism of consumerism and the social reforms he promoted – which, among other things, meant Uruguay became the first country to legalise the recreational use of marijuana – Mujica became a well-known political figure in Latin America and beyond.

His global popularity is unusual for a president of Uruguay, a country with just 3.4 million inhabitants where his legacy has also generated some controversy.

In fact, even though many tended to see Mujica as someone outside the political class, that was not the case.

He said his passion for politics, as well as for books and working the land, was passed on to him by his mother, who raised him in a middle-class home in Montevideo, the capital city.

As a young man, Mujica was a member of the National Party, one of Uruguay’s traditional political forces, which later became the centre-right opposition to his government.

In the 1960s, he helped set up the Tupamaros National Liberation Movement (MLN-T), a leftist urban guerrilla group that carried out assaults, kidnappings and executions, although he always maintained that he did not commit any murder.

Influenced by the Cuban revolution and international socialism, the MLN-T launched a campaign of clandestine resistance against the Uruguayan government, which at the time was constitutional and democratic, although the left accused it of being increasingly authoritarian.

During this period, Mujica was captured four times. On one of those occasions, in 1970, he was shot six times and nearly died.

(BBC News)

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Toxic algae kills more than 200 marine species in Australia

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More than 200 marine species off the coast of South Australia (SA) have been killed by a weeks-long toxic algae explosion, in what conservationists have described as “a horror movie for fish”.

The algal bloom – a rapid increase in the population of algae in water systems – has been spreading since March, growing to about 4,500 sq km (3,400 sq miles), or roughly the size of nearby Kangaroo Island.

“It’s an unprecedented event, because the bloom has continued to build and build,” said Vanessa Pirotta, a wildlife scientist.

Other scientists say the algae produces poisons which “act like a toxic blanket that suffocates” a wide range of marine life, including fish, rays and sharks.

Brad Martin, SA project manager for OzFish, a non-profit organisation that protects fishing habitats, said that while algal blooms are not uncommon, the “massive” scale of the current event has had a dramatic impact on marine life.

Toxins produced by the algae can cause “gill and tissue damage” by attacking the red blood cells, Mr Martin told the BBC.

The large density of the bloom also means that oxygen is being taken out of the water, “so we know that the fish are suffocating”.

“It is like a horror movie for fish,” he said.

The event has been widely documented by people sending in pictures of dead wildlife washed up on beaches.

The effect on sharks and rays has been particularly graphic, with large numbers washing up on beaches “bright red”, showing indications of haemorrhaging.

A three-metre great white shark was among those found dead in recent weeks.

Among the more than 200 species that have been killed, which range from the smallest of baby fish to great whites, some are more vulnerable than others.

Reef species like crabs and pufferfishes have been the worst hit, as they are less mobile and can’t swim away from the toxic algae.

While the algae isn’t harmful to humans, those exposed to high doses can experience skin irritation and respiratory symptoms such as coughing or breathing issues.

The SA government has advised people to avoid swimming at beaches where there is discoloured water and foam.

Algal blooms occur during sunny and warm conditions, and SA has had a marine heatwave since last September, with temperatures about 2.5 degrees warmer than average.

Australia has also been experiencing unseasonably warm conditions since March, which has further driven the size and duration of the current algal bloom.

The last time SA recorded a large event of this type of toxic algae was in 2014, according to the state’s environment and water department.

The spread has also affected some commercial fisheries, which have pre-emptively closed harvest areas.

Local coastal businesses have also seen a dip in visitors due to the sheer number of dead marine life washing up on shore.

Meanwhile, researchers and the SA government are continuing to monitor the bloom as it moves west.

(BBC News)

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