The Guardian

South Uist Before me is a curve of white sand and a lazy sea of glorious Hebridean blue, breaking with a gentle whisper on to the shore

It’s the best kind of late summer day, with bright sunshine and a temperature as high as anything we’ve had this year. The smell of new-mown grass carries on the warm breeze and from a few fields away comes the muted drone of a tractor. Emerging from under the bridge the river curves sinuously as it crosses the sand on the final stage of its journey to the sea. But unlike it, rather than heading for the beach I take the path behind the low dunes. It is edged by a riot of plants, some still in flower.

The violet-blue flowers of common vetch stand out from the luxuriant tangle of its intertwining leaves, while clumps of purple thistle-like hardheads rise above them. The remains of umbelliferous hogweed, dried ochre seed-heads atop brittle, ridged stems, make sculptural statements amid the foliage. Scattered liberally throughout are the cheerful yellows of the autumn hawkbit.

Findings suggest that the cephalopods – which have the most complex brains of any invertebrate – also prefer quality over quantity when it comes to food

New research suggests cuttlefish can not only count better than a one-year-old human, but they also prefer quality over quantity when it comes to food.

A study of 54 one-month-old cuttlefish hatched in captivity was carried out by Tsang-I Yang and Chuan-Chin Chiao, researchers at the National Tsing Hua University in Taiwan.

Cabinet Office paper, revealed accidentally, suggests collective responsibility may be waived by Theresa May

A leaked Whitehall document suggests Theresa May could hold a free vote on expanding airport capacity, potentially allowing some cabinet ministers to oppose a third runway at Heathrow.

The Cabinet Office paper, photographed on the tube and passed to Channel 4 News, examines the possibility of waiving collective responsibility for any vote on the highly controversial issue of expanding an airport in south-east England.

Britain’s only caviar farmer plans to expand with a second site in rural East Sussex but locals say the site will impact the landscape and put pressure on a river where sea trout spawn

Plans by Britain’s only caviar farmer to expand his operations to a tiny rural community in East Sussex have sparked a backlash from locals concerned over its environmental impact.

Ken Benning opened the country’s first caviar farm in Devon two years ago and supplies Michelin-starred restaurants in Britain, but his planning application for a further sturgeon farm at East Chiltington has been greeted with a wave of opposition.

The week’s top environment news stories and green events. If you are not already receiving this roundup, sign up here to get the briefing delivered to your inbox

An angry-faced caterpillar, lion’s mane jellyfish and a new species of giraffe are among this week’s pick of images from the natural world

Fishermen catch 20 of the mammals on the first day of the controversial six-month hunting season featured in anti-dolphin killing film The Cove

Japanese fishermen on Friday killed the first dolphins of the season in a controversial annual hunt that attracted global attention after it was featured in the Oscar-winning 2009 documentary The Cove.

Fishermen at the western town of Taiji caught 20 dolphins, according to the local Kii Mimpo newspaper.

Thousands of residents in China’s Shanxi province have been evacuated as villages next to mines have started sinking, after decades of reckless coal mining

Application for a mine in Northumberland will now be subject to a planning enquiry to determine if it is compatible with government climate change policy

An application for an opencast coal mine in Northumberland has been “called in” by the Government on climate grounds.

The proposals by Banks Mining for a surface mine for coal, sandstone and fire clay at Highthorn, between Widdrington Village and Druridge Bay, were given the green light by Northumberland county council in July.

A UK cross-party initiative addresses the appetite and mechanics for the cooperation needed to help us live within Earth’s limits

China and the US’s announcement that they will join the Paris climate accord comes at a time when the UK’s own climate and energy policies appear at best in disarray, and worst at odds.

Effects of habitat loss and climate change mean the future of the tiny native mammal is uncertain

Numbers of Britain’s native dormouse have declined by more than a third since 2000, according to the first definitive report on the state of the species.

The tiny, golden-brown animals were once widespread throughout England and Wales, but have become one of Britain’s most threatened mammals due to loss and fragmentation of their woodland habitat, changes in land management and a warmer climate.

Langstone Harbour, Hampshire For the osprey the fish-rich waters are a welcome place to rest before continuing the 3,000-mile trip to the wintering grounds in Africa

As summer fades into autumn the harbour begins to feel like a departure lounge. Migration is in full swing, with birds flying in to wait for a window in the weather before they risk crossing the Channel.

Related: Britain's migrating birds are drastically declining, RSPB says

Urgent action is needed if UK is to meet its targets, particularly for heating and transport

The UK will fail to meet its targets on renewable energy generation, with take-up of clean fuels for heating and transport falling badly behind aims, MPs have warned.

The findings of the influential energy and climate change committee (ECC) show that ministers have little clear plan for meeting the 2020 target to meet 15% of energy needs from renewable sources.

Bob Lamb’s letter (8 September) reminds me that my Auntie Jean, who lived in Allerton, recounted the arrival of unexpected guests at her door one day in the early 1960s. It was her cousin, Bill Shankly, with his friend, Matt Busby. “We need somewhere to talk,” said Bill. “Walls have ears at Anfield, you know.”
Karen Lewton
Newcastle upon Tyne

• How sad to read that the University of East Anglia is preparing to sacrifice its green space for car parking (Report, 8 September). At the University of Sheffield, where I work, we are banishing motor cars from the central campus and working with the city to create wildflower refuges, like the “Grey to Green” scheme in the legal district.
Simon Geller
Sheffield

Residents in Mytholmroyd, West Yorkshire, didn’t need to be asked twice when the Environment Agency offered to buy their flood-ravaged houses

Eight-and-a-half months after the river Calder invaded his terrace with such force that the neighbouring travel agency collapsed into the water, Tony Kay was finally able to clear out the house on Thursday. “Good riddance,” he said, as he lugged bits of kitchen into the boot of his car on Burnley Road in Mytholmroyd, West Yorkshire.

He couldn’t wait to give the keys to an Environment Agency official and be shot of the place, one of 238 homes, 48 businesses and one school in the Calder Valley still uninhabitable after the Boxing Day floods. The Agency offered to buy the doomed property and Kay didn’t need asking twice.

Discovery of genetic differences, using DNA analysis, could boost efforts to save declining populations

Researchers have discovered there are not just one but four distinct species of giraffe, overturning two centuries of accepted wisdom in a finding that could boost efforts to save the last dwindling populations.

Analysis of DNA evidence from all of the currently recognised nine sub-species found that there is not just one species of giraffe but enough genetic differences to recognise four distinct species. Experts said the differences are as large as those between brown bears and polar bears.

Giraffe have suffered a decline in number from around 150,000 across Africa three decades ago to 100,000 today, as their habitat has been turned over to agriculture. But as a single species the giraffe is currently listed as of least concern on the red list of endangered species, leaving the tallest living animals a relatively low conservation focus compared to rhino and elephant.

“People need to really figure out that giraffes are in danger. There are only 100,000 giraffes left in Africa. We’ll be working closely with governments and big NGOs to put giraffes on the radar,” said Dr Julian Fennessy, lead author of the new study which saw genetic testing in Germany on 190 giraffe.

The four recommended new species are the southern giraffe, with two subspecies, the Angolan giraffe and South African giraffe; the Masai giraffe; the reticulated giraffe; and the northern giraffe including the Kordofan giraffe and west African giraffe as subspecies.

Experts warn there may be no unspoilt places left within a century as report shows an area twice the size of Alaska has been lost since 1993

Humans have destroyed a tenth of Earth’s remaining wilderness in the last 25 years and there may be none left within a century if trends continue, according to an authoritative new study.

Researchers found a vast area the size of two Alaskas – 3.3m square kilometres – had been tarnished by human activities between 1993 and today, which experts said was a “shockingly bad” and “profoundly large number”.

在接下来的一年，英国《卫报》将与中外对话联合推出大象保护与拯救的系列报道。翻译：金枝 (中外对话/chinadialogue)

从早先欧美的象牙收藏热，到近来亚洲地区对象牙高涨的需求，一波又一波的屠杀已经将非洲大象逼向灭绝的边缘。过去十年，为了满足人们对象牙不灭的热情，非法狩猎活动猖獗，导致非洲大象数量灾难性下降。

Related: 事实上，大象已经濒临灭绝

A new partnership with chinadialogue will bring a year of in-depth reporting, expert opinion and features to a crucial audience of consumers and readers in China

Wave after wave of elephant slaughter, driven first by European and US ivory collectors and more recently by demand in Asia, has brought the African elephant to its knees. A catastrophic decline in the past decade is primarily due to poaching to feed a continuing passion for ivory.

The poachers are mainly Africans, but their clients are often criminal gangs based in Asia who smuggle the tusks on planes and ships to countries where demand for ivory continues to grow. The largest of these is China.

目前全球大象种群处境危急。卡尔·马蒂森 就将向我们解释，为何大象即将迎来前所未有的生死攸关时刻。

翻译: Estelle/中外对话/chinadialogue

作为陆地上体积最大的野生动物，声音如雷、体重可达六吨的大象可谓是生物演化史上的一个奇迹。除了它们那有着10万块肌肉的灵活无比的鼻子，和能帮助它们驱走热量的特大号耳朵之外，大象族群还有着复杂的母系社会结构，它们甚至还会在同伴逝去之后恸哭哀痛。而大象的另外一个特征就是长长的象牙，这本来应该是它们保护自己的防卫武器，然而却最终成为了族群濒危的导火索。