Huge iceberg breaks off from shelf in Antarctica – video

Aerial video released on 26 February reveals a huge iceberg has separated from the Brunt Ice Shelf in Antarctica, almost 10 years after scientists first discovered cracks.

The berg has been compared in size to the English county of Bedfordshire, measuring 1,270 sq km, according to the British Antarctic Survey (BAS).

Scientists were expecting the calving of the iceberg to happen, after daily monitoring of the area with GPS instruments and satellite imagery, the BAS's director, Prof Dame Jane Francis, said

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Fossil fuel cars make ‘hundreds of times’ more waste than electric cars

Analysis by transport group says battery electric vehicles are superior to their petrol and diesel counterparts

Fossil fuel cars waste hundreds of times more raw material than their battery electric equivalents, according to a study that adds to evidence that the move away from petrol and diesel cars will bring large net environmental benefits.

Only about 30kg of raw material will be lost over the lifecycle of a lithium ion battery used in electric cars once recycling is taken into account, compared with 17,000 litres of oil, according to analysis by Transport & Environment (T&E) seen by the Guardian. A calculation of the resources used to make cars relative to their weight shows it is at least 300 times greater for oil-fuelled cars.

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Denmark’s climate policies ‘insufficient’ to meet 2030 target

Report says country set to cut carbon emissions by 54% compared with 1990 levels, not 70% as planned

The Danish government’s efforts towards meeting the country’s ambitious target of reducing emissions by 70% by 2030 have been judged “insufficient” by the body tasked with monitoring its progress, with measures so far announced only likely to take it a third of the way.

In its first annual status report, the Danish Council on Climate Change said new laws, inter-party agreements and initiatives announced since the country’s climate law came into effect last June would reduce emissions by the equivalent of 7.2m tonnes of CO2 by 2030, which is only enough to reduce Denmark’s emissions by 54% compared with 1990 levels.

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‘It’s a funeral march’: French artist JR’s powerful eulogy for Australia’s Murray-Darling

Exclusive: The street artist’s latest work saw 60 people parade through Lake Cawndilla in NSW, holding aloft enormous portraits of local farmers and leaders as they fight to save Australia’s vital river system

The mood around Lake Cawndilla in western New South Wales on Saturday is funereal but defiant, as a procession of around 60 locals parade through scrub and sand around its banks.

They carry between them a series of 30m-long cloth figures: three local citrus farmers and prominent Baakandji artist William Badger Bates.

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Electricity needed to mine bitcoin is more than used by ‘entire countries’

Bitcoin mining – the process in which a bitcoin is awarded to a computer that solves a complex series of algorithm – is a deeply energy intensive process

It’s not just the value of bitcoin that has soared in the last year – so has the huge amount of energy it consumes.

The cryptocurrency’s value has dipped recently after passing a high of $50,000 but the energy used to create it has continued to soar during its epic rise, climbing to the equivalent to the annual carbon footprint of Argentina, according to Cambridge Bitcoin Electricity Consumption Index, a tool from researchers at Cambridge University that measures the currency’s energy use.

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Australia accused of ‘shamefully’ holding back global action on climate change

United Nations calls on all countries to have ‘concrete plans to phase out fossil fuels as fast as possible’

Australia has been accused of “shamefully doing nothing” and weighing down global action after a UN analysis found national pledges to cut greenhouses gas emissions over the next decade have barely begun to do what is necessary to tackle the climate crisis.

The assessment of emissions reduction plans submitted to the UN by the end of last year found if all were fulfilled they would cut global CO2 by only 1% by 2030, compared with 2010 levels.

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Thames Water hopes to harness human ‘poo power’ to heat homes

Company says sewage plan would avoid 105,000 tonnes of carbon dioxide emissions over 30 years

Thousands of homes in south-west London could soon be warmed by the waste from their local sewage works as part of England’s first poo-powered district heating scheme.

Thames Water hopes to harness the heat of human waste from its treatment plant in Kingston upon Thames to warm more than 2,000 new homes that form part of a regeneration plan for the borough’s Cambridge Road estate.

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‘A cause for worry’: Mexico’s monarch butterflies drop by 26% in year

Butterflies had bad year after four times as many trees were lost to illegal logging and extreme climate conditions

The number of monarch butterflies that reached their winter resting grounds in central Mexico decreased by about 26% this year, and four times as many trees were lost to illegal logging, drought and other causes, making 2020 a bad year for the butterflies.

The butterflies’ population covered only 2.1 hectares (5.2 acres) in 2020, compared to 2.8 hectares (6.9 acres) the previous year and about one-third of the 6.05 hectares (14.95 acres) detected in 2018, according to government figures.

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Male lyrebirds resort to artful deception in the pursuit of procreation

Males use vocal trickery to fool females into thinking a threat is lurking, giving them time to sow their genetic seeds

Male lyrebirds in the throes of sexual union will mimic the sound of a distressed mob of other birds to fool their mate and stop her from escaping, new research from Australia has found.

The remarkable discovery was made after analysing audio and video of superb lyrebirds – a species known for extravagant dance routines and an ability to imitate the calls of more than 20 other species.

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Atlantic Ocean circulation at weakest in a millennium, say scientists

Decline in system underpinning Gulf Stream could lead to more extreme weather in Europe and higher sea levels on US east coast

The Atlantic Ocean circulation that underpins the Gulf Stream, the weather system that brings warm and mild weather to Europe, is at its weakest in more than a millennium, and climate breakdown is the probable cause, according to new data.

Further weakening of the Atlantic Meridional Overturning Circulation (AMOC) could result in more storms battering the UK, more intense winters and an increase in damaging heatwaves and droughts across Europe.

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‘Get the trees back’: NSW minister wanted ‘clearance zone’ around highways after bushfires

Andrew Constance confirms he demanded the now-sacked transport department head to fell trees 40 metres either side of highways but was refused

The New South Wales transport minister, Andrew Constance, demanded the now-sacked head of his department create an 80-metre “clearance zone” around highways after the 2020 bushfires, an order Labor says could have resulted in countless trees being felled if followed.

During the state’s budget estimates hearings on Thursday, Constance confirmed he had issued the directive to the former department head, Rodd Staples, following last summer’s bushfire crisis.

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Biden urged to back water justice bill to reverse decades of underinvestment

Water Act proposes injection of federal dollars to overhaul ageing infrastructure, create jobs and address inequalities

Democratic lawmakers and advocates are urging Joe Biden to back legislation proposing unprecedented investment in America’s ailing water infrastructure amid the country’s worst crisis in decades that has left millions of people without access to clean, safe, affordable water.

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Black-browed babbler found in Borneo 180 years after last sighting

Exclusive: Stuffed specimen was only proof of bird’s existence until discovery in rainforest last year

In the 1840s, a mystery bird was caught on an expedition to the East Indies. Charles Lucien Bonaparte, the nephew of Napoleon, described it to science and named it the black-browed babbler (Malacocincla perspicillata).

The species was never seen in the wild again, and a stuffed specimen featuring a bright yellow glass eye was the only proof of its existence. But now the black-browed babbler has been rediscovered in the rainforests of Borneo.

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‘Unique’ petrified tree up to 20m years old found intact in Lesbos

Discovery of 19.5-metre tree with roots, branches and leaves is unprecedented, say experts

First came the tree, all 19.5 metres of it, with roots and branches and leaves. Then, weeks later, the discovery of 150 fossilised logs, one on top of the other, a short distance away.

Nikolas Zouros, a professor of geology at the University of the Aegean, couldn’t believe his luck. In 25 years of excavating the petrified forest of Lesbos, he had unearthed nothing like it.

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What a dump! Why ‘wild toileting’ has become a big pandemic problem

The number of people doing their business alfresco has shot up. But what else can you do when nature calls and there aren’t any public loos?

Name: Wild toileting.

Age: Dates back to Homo erectus. Urinating and defecating are part of the human condition – “I shit, therefore I am” (“Coshito, ergo sum”), as Descartes almost said – and were undomesticated until the Mesopotamians invented toilets almost 4,500 years ago.

Appearance: Don’t even think about it.

Is there a lot of it about? According to the Lulworth Estate, which manages Durdle Door and the surrounding coastline in Dorset, far too much. It says it saw a huge increase in “wild toileting” when lockdown was lifted last summer. It is calling on Boris Johnson to make responsible tourism a priority when travel restrictions ease this spring.

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Meatless school menu sparks political row in France

Temporary decision by Green mayor of Lyon to take meat off menu met by protests

A decision by the Green mayor of Lyon, seen by many as the country’s culinary capital, to temporarily take meat off the menu in school canteens during the coronavirus pandemic has sparked a major political row in France.

Government ministers have accused the mayor, Grégory Doucet, of “ideological” and “elitist” behaviour after the measure, which is also being studied by several other cities including Paris, came into force in Lyon’s schools on Monday.

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Australia’s dingo fence from space: satellite images reveal its effects on landscape

Dingoes eat kangaroos and kangaroos eat grass. So on the side of the fence where dingoes are rare, there is less vegetation

As one of the longest structures in the world, the dingo fence is an Australian landmark. It stretches more than 5,600km across three states, including 150km that traverses the red sand dunes of the Strzelecki Desert.

Since it was established in the early 20th century, the fence has had one job: to keep dingoes out. The effect of this on the environment has been enormous – you can see it from outer space.

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Justin Trudeau says US leadership has been ‘sorely missed’ during first meeting with Biden

Canadian PM congratulates US president on rejoining Paris accord, saying ‘it’s nice when the Americans are not pulling out all the references to climate change’


Justin Trudeau has praised Joe Biden for rejoining the Paris climate accord during their first bilateral meeting, saying: “US leadership has been sorely missed over the past years.”

The Canadian prime minister added: “And I have to say as we were preparing the joint rollout of the communique on this, it’s nice when the Americans are not pulling out all the references to climate change and instead adding them in.”

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