Billionaire climate activist Mike Cannon-Brookes and wife Annie to separate

The couple pledged in 2021 to spend $1.5bn of their approximately $25bn personal fortune on projects to tackle the climate crisis

Software billionaire and high-profile climate change activist Mike Cannon-Brookes, the founder of Australian company Atlassian, is separating from his wife, Annie.

Cannon-Brookes married the American fashion designer Annie Todd in January 2010 and the pair have four children together.

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Marine heatwave off north-east Australia sets off alarm over health of Great Barrier Reef

Experts fear for health of corals and other marine life as about 1m sq km of ocean experience prolonged elevated temperatures

A marine heatwave has broken out along more than 2,000km of the Queensland coast, raising concerns for the health of corals on the Great Barrier Reef and other ocean life.

Satellite data managed by the US National Atmospheric and Oceanic Administration (NOAA) shows the heatwave started to emerge at the end of June.

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Hot streak: US heatwaves lasting longer as record temperatures bake south-west

Phoenix and Californian town of Needles experiencing 70th day in which temperatures have reached 90F

A brutal heatwave is persisting throughout much of the US, with cities across the south-west reaching all-time records for hottest consecutive days. Intense heatwaves are becoming more frequent as a result of the climate crisis, but alarmingly, these streaks of hot days are also lasting longer.

People living in cities in Arizona, California and Texas are entering their second month of days in which the temperature reaches 90F (32.2C) and above. Cities such as Phoenix, and Needles in California, have had no relief from this extreme heat in the past 70 days, with Phoenix recently experiencing three consecutive weeks of temperatures reaching 110F (43.3C) and above.

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Leading Nasa climate expert says July likely to be hottest month on record

Gavin Schmidt of Goddard Institute for Space Studies warns of likelihood of new high as heatwave bakes large parts of planet

July will likely be Earth’s hottest month in hundreds if not thousands of years, Gavin Schmidt, the director of Nasa’s Goddard Institute for Space Studies, told reporters on Thursday, as a persistent heatwave baked swaths of the US south.

Schmidt made the announcement during a meeting at Nasa’s Washington headquarters that convened agency climate experts and other leaders, including Nasa administrator Bill Nelson and chief scientist and senior climate adviser Kate Calvin.

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Thursday briefing: What’s behind Europe’s extreme heat – and the risks ahead

In today’s newsletter: How countries have responded to record-breaking temperatures – and what it will take to change minds and policy

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Good morning.

When the temperature in Sicily is approaching 50C, you know something is wrong.

New Zealand | Two people died and six people were injured after a shooting at a building site in Auckland city centre, hours before the Women’s World Cup is due to start. The gunman was also dead. New Zealand’s PM, Chris Hipkins, said the World Cup would proceed as planned.

Politics | Almost 200,000 families living under Labour-run councils are affected by the two-child benefit cap, a Guardian analysis has revealed. Keir Starmer’s decision not to scrap the policy if Labour wins power has led to attacks from anti-poverty campaigners and disquiet from senior figures in the party.

Health | MPs have urged the government to introduce restrictions on the packaging and marketing of disposable vapes to tackle the “alarming trend” of children using these addictive products. The health and social care committee said there should be restrictions on how e-cigarettes are sold, in line with those applied to tobacco products.

Slavery | Caribbean countries are considering approaching the UN’s international court of justice for a legal opinion on demanding compensation from 10 European countries over slavery, as the fight for reparative justice is stepped up. Ralph Gonsalves, the current leader of the Community of Latin American and Caribbean States, said he is also looking for an apology from the British government and expressed disappointment in Rishi Sunak’s lack of engagement in the matter.

Strikes | A strike by train staff in the RMT union will severely affect rail services across Britain in the next week. About 20,000 RMT members at 14 train operators will strike for 24 hours on Thursday and again on Saturday, coinciding with the end of a week-long overtime ban by train drivers in the Aslef union. The 10 days of transport disruption will coincide with the peak summer holiday getaway weekend.

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Extreme weather: heat strains healthcare systems, says WHO; Nasa to meet climate experts – as it happened

This blog is now closed. To read our latest news on the extreme weather gripping the world, click the links below

Here are some more images from the wires of the wildfires that swept through forestland and towns north-west of Athens for a second day. The fires forced the evacuation of more than 1,000 children close to a Greek seaside resort.

Tourists flocked to China’s scenic Flaming Mountains to experience searing high temperatures amid punishing heatwaves that have scorched much of the northern hemisphere.

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Labor faces internal fight over native forest logging despite emissions pledge

Labor’s Environment Action Network says draft national platform ‘very, very weak’ on opposing native forest logging and land clearing

Labor has significantly beefed up its commitment to reduce emissions in the gas industry but still faces a fight at its national conference over “weak” policies on native forest logging.

Labor’s Environment Action Network (Lean) has now signed up 294 branches for its push to end native forest logging and broad scale land clearing, but both policies were omitted from the draft national platform distributed to delegates on Monday.

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EU sends water bombers to help fight wildfires around Athens

Flying boats dispatched as state of emergency called in Loutraki, with firefighters battling fast-moving blaze

The EU has weighed in with help to combat wildfires in Greece, dispatching four Canadair water bombers as the battle to douse blazes that have raged around Athens intensified.

Conflagrations whipped by gale-force winds left a trail of devastation, decimating pine forests, destroying homes and forcing thousands to flee as flames tore through terrain turned tinder dry by extreme heat.

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Extreme weather live: Phoenix breaks record with 19th day of 110F highs in a row; Europe swelters under heatwave – as it happened

Arizona state capital suffering from longest heatwave in 50 years; Italian hospitals see rise in urgent cases due to hot weather

More comments now ahead of that meeting between US climate envoy John Kerry and top Chinese diplomat Wang Yi, as the pair meet as part of climate talks between the two countries responsible for the highest carbon emissions – emissions that are driving the climate crisis currently causing record global temperatures, heatwaves and floods.

“President Biden is very committed to stability in the US-China relationship and also to achieve efforts together that can make significant difference to the world,” Kerry says.

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Olive oil industry in crisis as Europe’s heatwave threatens another harvest

World’s biggest olive producer, Spain, on course for second bad harvest in a row, raising fears of gaps on shelves and even higher prices

The olive oil industry is “in crisis”, with the heatwave in southern Europe threatening to inflict the second bad harvest in a row and gaps on shelves this autumn.

After a spring heatwave affected flowering in Spain, which produces about half the global olive crop, the harvest was forecast to be only 28% up on last year, which was the worst in almost a decade.

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Italian media more focused on foreign coverage of heatwave than its effects

Reporting of climate crisis has been lousy for years, experts say, in a country where rightwing press has been dominant

Italy is sweltering in abnormally high temperatures, but its media appear to be more interested in how the extreme heat is being reported in the foreign press than delving deeply into the effects in a country deemed to be among the most vulnerable in Europe to the climate crisis.

Over the weekend, several outlets picked up on reports on Italy’s heatwave in leading foreign news websites – including the Guardian, the Times and the BBC. They were particularly fascinated by a headline in the Times calling Rome – where temperatures are forecast to reach highs of 43C on Tuesday – the “Infernal City”, a play on the nickname “Eternal City”. So much so that it was still a talking point come Monday.

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US climate envoy meets Chinese counterpart on hottest ever day in China

John Kerry arrives in Beijing as temperature hits 52.2C in Xinjiang – where authorities tell workers and students to stay at home

A remote township in China’s western Xinjiang region has set a nationwide temperature record of 52.2C, as the US climate envoy, John Kerry, held meetings with his Chinese counterpart, Xie Zhenhua, in Beijing.

The temperature was reached on Sunday at Sanbao township in the Turpan Depression, the China Meteorological Administration said in a statement. It broke a previous record of 50.6C, set in July 2017, the CMA said.

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Extreme heatwave live: Texas city confirms first heat death; northern hemisphere boils in severe weather – as it happened

Man in Houston died in house without air conditioning; mercury in parts of Italy is close to hitting 45C as wildfires ravage Greece and Spain

South Korean president blames botched responses for rising death toll

South Korean president Yoon Suk Yeol has blamed authorities’ failure to follow disaster response rules as the death toll from days of torrential rain grew to 39, including a dozen people found dead in a submerged underpass.

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Millions in US under warnings as record heat expected to continue next week

South-west and parts of the west hardest hit amid warnings to ‘take heat seriously’ as Phoenix temperature to rise to 118F Sunday

More than 100 million people, around a third of Americans, were under extreme heat advisories this weekend and that record-breaking heat was expected to continue into the new week.

There were advisories from coast to coast, with the south-west and parts of the west hard hit and officials warning that conditions could get worse in Arizona, California and Nevada.

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US south-west bakes under potentially deadly record high temperatures

Phoenix, Arizona, logged its 16th day above 110F, and California’s Death Valley reached 122F as cities offered cooling centers

A dangerous heatwave threatened a wide swath of the south-west with potentially deadly temperatures in the triple digits on Saturday as some cooling centers extended their hours and emergency rooms prepared to treat more people with heat-related illnesses.

“Near record temperatures are expected this weekend!” the National Weather Service in Phoenix warned in a tweet, advising people to follow its safety tips such as drinking plenty of water and checking on relatives and neighbors.

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Five arrested after climate protest at Ineos oil refinery in Scotland

Police say alleged offences include breach of the peace after 200 people march to plant and four climb on roof

Five people have been arrested after environmental activists staged a day of resistance at the Ineos oil refinery near Falkirk.

Four people climbed on to the roof of the Ineos gas power station at Grangemouth and held up a banner on Saturday afternoon. Earlier, about 200 people marched to the fence of the Ineos plant, which powers the oil refinery, from a climate camp approximately a mile away.

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Firefighters battle California wildfires amid blistering heatwave

Three brush fires burning in rural areas across Riverside county, where 1,000 homes are under evacuation orders

Firefighters in southern California were battling three separate brush fires that started on Friday afternoon amid a blistering heatwave.

The fires were all within 40 miles (65km) of each other in mostly rural areas across Riverside county, south-east of Los Angeles.

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‘I’ve never seen heat this bad. It’s not normal’: Italy struggles as temperature tops 40C

Anticyclone Caronte could send thermometer to 48C/118F as Mediterranean heatwave intensifies

Read more: Acropolis closes to protect tourists

A fierce anticyclone named after Cerberus, a three-headed monster-dog that features in Dante’s Inferno, had not even ended before Italians were warned that a more intense one called Caronte, or Charon, who in Greek mythology was the ferryman of the dead, was on its way.

Italy sweltered in temperatures reaching highs of 38C over the weekend, while Caronte will grip the country from Monday, sending the mercury beyond 40C in central and southern regions, with the islands of Sicily and Sardinia possibly hitting a peak of 48C.

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Florida rocked by home insurance crisis: ‘I may have to sell up and move’

Soaring hurricane-cover premiums are bad news for the state’s homeowners – and Ron DeSantis is accused of dragging his feet

Households in Florida, the third most populous state in the US, have been grappling for some time with a property insurance crisis that is making home ownership unaffordable for many. After at least six insurers went insolvent in Florida last year, Farmers on Tuesday became the latest to pull out of the Florida market, saying in a statement that the decision was based on risk exposure in the hurricane-prone state.

Climate change is threatening the very existence of some parts of Florida. And the costs are already being felt by Floridians. At the end of 2022, average annual property insurance premiums had already risen to more than $4,200 in Florida – three times the national average.

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Foreign Office cannot say how many climate officials it has

Exclusive: Former envoy raises concerns over possible ‘deliberate defunding of climate diplomacy under Sunak government’

The UK Foreign Office has said it does not know how many of its officials and diplomats are working on climate change and energy issues, in response to freedom of information requests.

The government has frequently described itself as a world leader on climate issues and the Foreign Office recently stated that “climate change remains an area of utmost importance and is a central focus of our diplomatic relations on a daily basis”.

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