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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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Airbus reveals planes sold in last two years will emit over 1bn tonnes of CO2

Landmark emissions disclosures cover 22-year lifetime of 1,429 aircraft sold in 2019 and 2020

Planes sold by Airbus in 2019 and 2020 will produce well over 1bn tonnes of carbon dioxide during their lifetimes, according to landmark first estimates of the aerospace manufacturer’s emissions.

Airbus sold a record 863 planes in 2019, which would translate to 740m tonnes of carbon dioxide equivalent produced over a 22-year period, according to figures seen by the Guardian. It sold 566 planes last year, for which lifetime emissions would be 440m tonnes.

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Green homes grant will meet only tiny fraction of target in England

Scheme will issue vouchers to just 49,000 people by end of March at current rate, analysis finds

The government’s flagship green homes grant scheme will help just 8% of its target 600,000 households switch to renewable energy by the end of March, analysis reveals.

The £2bn for the scheme is being withdrawn at the end of next month. Analysis by the Energy and Climate Intelligence Unit thinktank reveals that at the current rate it will issue vouchers to just 49,000 members of the public by that time.

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Fiercer, more frequent fires may reduce carbon capture by forests

Global study shows blazes diminish forest density and tree size, making woods likely to sequester less carbon

More fierce and frequent fires are reducing forest density and tree size and may damage forests’ ability to capture carbon in the future, according to a global study.

Although forest fires are naturally occurring phenomena and natural forests regenerate, global heating and human activity have caused the frequency and intensity of fires to rise. Wildfires burn 5% of the planet’s surface every year, releasing carbon dioxide into the atmosphere equivalent to a fifth of our annual fossil fuel emissions.

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Government under pressure to stop Leeds Bradford airport expansion

Critics say plan would wreck efforts to tackle climate crisis and undermine UK credibility ahead of Cop26

The government is under growing pressure to halt a proposed expansion of Leeds Bradford airport, which critics say would wreck efforts to tackle the ecological crisis and undermine the government’s credibility ahead of a key climate conference later this year.

The expansion plans, which would support an increase in passengers from 4 to 7 million people a year by 2030, were given conditional approval by Leeds city council earlier this month despite widespread opposition from local MPs, residents and environmental groups.

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A practical guide to tackling the climate crisis – podcast

The first UN climate change conference was held in 1995 in Berlin. More than two decades later, our planet remains on track for three degrees of warming above pre-industrial levels by the end of the century. The answer to avoiding this catastrophe is both simple and staggeringly complicated: drastically reducing and reversing the amount of carbon dioxide entering our atmosphere. How do we do this? Science correspondent Natalie Grover speaks to Prof Mike Berners-Lee, author of There is No Planet B, who has crunched the numbers on everything from carbon offsetting and green investments to e-bikes

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Australian sport stars call for more action to combat climate ‘havoc’

New report warns sport will be ‘unplayable’ during increasingly severe summer heatwaves predicted for nation

The impact of extreme weather on sport, which has resulted in seasons being cut short and players hospitalised, has prompted Australian sport stars to call for greater action to combat the climate crisis.

The growing list of high-profile athletes to call for government action on climate change includes Australian cricket vice-captain Pat Cummins, former Wallabies captain David Pocock, Olympic swimmer and gold medallist Bronte Campbell, surfer Adrian Buchan and AFLW player Sharni Layton.

Related: Recent Australian emissions cuts likely to be reversed in recovery from Covid and drought

Related: Australia's climate policy is a mix of delusion and denial. We need to get real | Greg Jericho

Related: Joe Biden's climate envoy admits US and Australia not on 'same page'

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Arctic ice loss forces polar bears to use four times as much energy to survive – study

Other predators such as narwhals are suffering similarly as unique adaptations become less suited

Polar bears and narwhals are using up to four times as much energy to survive because of major ice loss in the Arctic, according to scientists.

Once perfectly evolved for polar life, apex predators are struggling as their habitats shrink and unique adaptations become less suited to an increasingly ice-free Arctic, researchers say.

Related: Greenhouse gas emissions transforming the Arctic into 'an entirely different climate'

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From the archive: 'A reckoning for our species': the philosopher prophet of the Anthropocene – podcast

We are raiding the Audio Long Reads archives and bringing you some classic pieces from years past, with new introductions from the authors.

This week: Timothy Morton wants humanity to give up some of its core beliefs, from the fantasy that we can control the planet to the notion that we are ‘above’ other beings. His ideas might sound weird, but they’re catching on. By Alex Blasdel

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Hot houses: the race to save bats from overheating as temperatures rise

Chimneys for bat boxes and a flying fox heat stress forecaster are among efforts to prevent deaths from effects of climate crisis

Steve Latour and his wife were enjoying their usual early morning coffee in the sun outside their lake house in the Kootenay region of British Columbia when they heard noises coming from the bat box attached to the side of the house. Every summer, about 150 Yuma myotis bats return to the box, using it as a maternity colony to give birth to pups and take care of them until they are ready to leave for hibernation in the autumn.

Bats walk a tightrope because a few degrees change can make a difference as to whether they live or die

Related: New sensor offers a window into the secret lives of Britain's rarest bats

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