Mont Blanc glacier in danger of collapse, experts warn

Italian mayor orders roads closed and homes evacuated over fears ice will break away

Italian authorities have closed off roads and evacuated homes after experts warned that a portion of a Mont Blanc glacier is at risk of collapse.

Stefano Miserocchi, the mayor of the town of Courmayeur, said “public safety is a priority” after experts from the Fondazione Montagna Sicura (Safe Mountains Foundation) in the Aosta Valley said up to 250,000 cubic metres of ice was in danger of sliding off the Planpincieux glacier on the Grandes Jorasses peak.

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Greta Thunberg wins ‘alternative Nobel’ for environmental work

Chinese women’s rights advocate Guo Jianmei also among quartet of ‘practical visionaries’ recognised in Right Livelihood awards

Days after her powerful speech to the UN climate action summit reverberated around the world, Greta Thunberg has been named among four winners of an international award dubbed the “alternative Nobels”.

The Swedish activist, whose emotional address accusing world leaders of betraying her generation went viral this week, was recognised by the judges of Sweden’s annual Rights Livelihood awards for “inspiring and amplifying political demands for urgent climate action reflecting scientific facts”.

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Lambasting China over their emissions might impress the US but it could be costly for Australia | Frank Jotzo

In many regards, China’s climate action is stronger than that of Australia or America, at much lower levels of development

Visiting the United States, Australia’s prime minister demanded of China “participation in addressing important global environmental challenges” in light of its “new status and responsibilities”. As part of a broad call to expect more of China, the comments on environment caught attention as they were made at the time of the UN climate summit.

Pointing to China’s emissions growth as an excuse for lack of climate action in Australia was in vogue a decade and longer ago. Then, China’s energy use and carbon emissions rose sharply with its investments in factories, infrastructure and housing. But things have changed in China, and there no longer is a formal distinction between climate pledges from developed and developing countries. In many regards, China’s climate action is stronger than that of Australia or America, at much lower levels of development.

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Rewilding will make Britain a rainforest nation again | George Monbiot

I will take vision and a willingness to confront vested interests, but we can restore our trashed ecosystems

The forests still burn, but the world now looks away. In both the Amazon basin and the rainforests of Indonesia, the world-scorching inferno rages on, already forgotten by most of the media. Intricate living systems, species that took millions of years to evolve, are being incinerated in moments, then replaced with monocultures. Giant plumes of carbon tip us further into climate breakdown. And we’re not even talking about it.

Related: World losing area of forest the size of the UK each year, report finds

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Indonesian forest fires putting 10 million children at risk, says Unicef

Millions aged under five are particularly at risk from the slash and burn fires due to undeveloped immune systems

Indonesian forest fires are putting nearly 10 million children at risk due to air pollution, the United Nations has warned.

The fires have been spewing toxic haze over south-east Asia in recent weeks, closing schools and airports, with people rushing to buy face masks and seek medical treatment for respiratory ailments.

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Scott Morrison ducks questions on Australia’s emissions strategy for 2050

UN climate summit focus is on net zero by 2050 but Australian PM says challenge ‘not just about climate change’

Scott Morrison has ducked questions about when his government will develop an emissions reduction strategy for 2050, despite signing on at the Pacific Islands Forum to a communique pledging to develop one next year.

The Australian prime minister is also copping flak at home for his decision to signal in a speech in Chicago that China needed to be treated like a developed economy both in global trade and climate change negotiations – meaning Beijing would need to make a significant commitment towards emissions reduction.

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Most of world’s biggest firms ‘unlikely’ to meet Paris climate targets

Only a fifth of the companies will remain on track, according to analysis of their disclosures

More than four fifths of the world’s largest companies are unlikely to meet the targets set out in the Paris climate agreement by 2050, according to fresh analysis of their climate disclosures.

A study of almost 3,000 publicly listed companies found that just 18% have disclosed plans that are aligned with goals to limit rising temperatures to 1.5C of pre-industrialised levels by the middle of the century.

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Greta Thunberg condemns world leaders in emotional speech at UN

  • Thunberg, 16, says governments have betrayed young people
  • ‘You are not mature enough to tell it like it is. You are failing us’

Greta Thunberg has excoriated world leaders for their “betrayal” of young people through their inertia over the climate crisis at a United Nations summit that failed to deliver ambitious new commitments to address dangerous global heating.

Related: If world leaders choose to fail us, my generation will never forgive them | Greta Thunberg

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UN secretary general hails ‘turning point’ in climate crisis fight

  • United Nations hosts climate summit in New York on Monday
  • New data shows 2014-19 warmest five-year period on record

The world may have hit a hopeful “turning point” in the struggle to tackle the climate crisis despite escalating greenhouse gas emissions and the recalcitrance of major emitters Brazil and the US, according to the United Nations secretary general.

Related: Trump to snub climate summit for religious freedom meeting at UN

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Climate strikes: hoax photo accusing Australian protesters of leaving rubbish behind goes viral

The image was not taken after a climate strike and was not even taken in Australia

A hoax photo that claims to show rubbish left behind by Australian climate strike protesters is circulating on Facebook, despite being revealed as fake months ago.

Though it lacks any verification, and was debunked in April, the image and false caption have been shared 19,000 times in 12 hours, and thousands of times from copycats.

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‘Save us, save the world’: Pacific climate warriors taking the fight to the UN

Frank Bainimarama, Enele Sopoaga and Hilda Heine hope their urgent demands for action will save their island nations from the rising waves

It is the final night of the Pacific Islands Forum in Tuvalu and the Fijian prime minister is explaining how to drink kava.

“You clap first,” says Frank Bainimarama, as the smooth wooden bowl is passed around the circle. “Then you have to gulp in one go; then you clap again – one, two, three.”

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Across the globe, millions join biggest climate protest ever

Young and old alike took to the streets in an estimated 185 countries to demand action

Millions of people demonstrated across the world yesterday demanding urgent action to tackle global heating, as they united across timezones and cultures to take part in the biggest climate protest in history.

In an explosion of the youth movement started by the Swedish school striker Greta Thunberg just over 12 months ago, people protested from the Pacific islands, through Australia, across-south east Asia and Africa into Europe and onwards to the Americas.

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Voices for the Future: climate activism lights up the UN – in pictures

The United Nations headquarters in New York plays host to an immersive art installation by artist Joseph Michael that features images of an iceberg and six young advocates including Greta Thunberg addressing hopes and fears around the climate crisis and the urgent actions that must be taken

  • Voices For the Future will be performed 7.30-10 pm EDT on Friday 20 September outside the UN building in New York
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Global climate strike: Greta Thunberg and school students lead climate crisis protest – live updates

Millions of people from Sydney to Manila, Dhaka to London and New York will march for urgent action on climate breakdown

Glorious scenes in Edinburgh as thousands of children, parents, students and musicians gather at the Meadows for the Climate Strike.

“This is our Earth and our Future. We need to take care of it ,” said 11-year-old Leila Koita, pictures here with friends Eilidh Tedesco, Norah Turner, Tilly Torrie, Megan Berger and NaN Zhang.

Norah’s mum, Jo Spencely says she hasn’t been on a demo for decades but she is here to show support. “I’m massively concerned about their future. I almost can’t bear to read about the climate. It’s so scary.”

The march sets off at 11:30am and will pass through Edinburgh city centre and end with a rally in front of the Scottish Parliament. As in London, police have imposed restrictions, in this case by refusing permission for the marchers to walk down Princes Street.

As elsewhere, this is just the start of a week of climate action. On Saturday, activists will stage a “die in”, Monday will be a “day of disruption”, musicians will join a “Love the Planet Festival” on Wednesday, and there’ll be another rally outside parliament the following day.

Even Emmeline Pankhurst has joined in the protests in Manchester. A statue of the suffragette hero has donned a bright orange lifejacket and a placard that asks: “Ready for rising sea levels to reach this height?”

The stunt was the idea of Katie Bradshaw and Ryan Griffiths, both 31, who described themselves as first-protestors who felt the need to act today.

“Emmeline still carries that Mancunian spirit of standing up for what she believes in and great causes,” said Griffiths. “Climate change is so important and we think it’s something herself would be an issue she would be at the forefront of if she were around today.”

Bradshaw added: “We’ve got to do our bit and even if it’s just putting some signs up and making people realise we need to look after our planet. If she was around today she’d be supporting it.”

Emmeline Pankhurst showing the world the way in Manchester pic.twitter.com/Z1TFjYCAuN

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Climate scientists prepare for largest ever Arctic expedition

Hundreds of researchers will spend year on ship improving understanding of sea ice

Researchers from more than a dozen countries are preparing to launch the biggest and most complex expedition ever attempted in the central Arctic – a year-long journey through the ice they hope will improve the scientific models that underpin our understanding of climate change.

In the €140m (£123m) Mosaic expedition, 600 scientists from 19 countries including Germany, the US, Britain, France, Russia and China will work together in one of the most inhospitable regions of the planet.

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US and Canada have lost three billion birds since 1970

More than one in four birds have been lost across diverse groups and habitats, in what researchers describe as a ‘wake-up call’

The US and Canada have lost more than one in four birds – a total of three billion – since 1970, culminating in what scientists who published a new study are calling a “widespread ecological crisis”.

Researchers observed a 29% decline in bird populations across diverse groups and habitats – from songbirds such as meadowlarks to long-distance migratory birds such as swallows and backyard birds like sparrows.

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Climate strike in Australia: everything you need to know about Friday’s protest

Time and location for the 20 September school strike for climate change in Melbourne, Sydney, Brisbane, Perth, Canberra, Adelaide, Hobart and more

Thousands of Australian school students are again preparing to walk out of classrooms across the country to demand action on the climate crisis.

The global mass day of action will take place on Friday 20 September, three days before the United Nations climate summit in New York.

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Greta Thunberg: ‘We are ignoring natural climate solutions’

Film by Swedish activist and Guardian journalist George Monbiot says nature must be used to repair broken climate

The protection and restoration of living ecosystems such as forests, mangroves and seagrass meadows can repair the planet’s broken climate but are being overlooked, Greta Thunberg and George Monbiot have warned in a new short film.

Natural climate solutions could remove huge amounts of carbon dioxide from the atmosphere as plants grow. But these methods receive only 2% of the funding spent on cutting emissions, say the climate activists.

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‘Wake up and face facts’ : Greta Thunberg pleads with politicians to lead fight against climate crisis – as it happened

  • The Swedish teen activist made clear her disapproval of Trump leaving the Paris climate agreement
  • The Guardian is joining forces with more than 250 news outlets to strengthen coverage of the climate crisis ahead of the UN summit. Read more about Covering Climate Now.

That’s it from the Liveblog for today.

Writer (and occasional Guardian columnist) Roxane Gay has endorsed Massachusetts senator, democratic presidential candidate and selfie enthusiast Elizabeth Warren for president, joining the progressive group Working Families Party -- which endorsed Warren’s challenger Bernie Sanders in 2016.

Shoutout to our #WCW, @rgay. We’re grateful that you’re in this fight with #TeamWarren. ✨ pic.twitter.com/5YEkyrCn8X

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