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What is the Chalara ash dieback tree fungus disease?

A deadly fungus is spreading "more quickly and lethally" through the UK's ash trees than experts had anticipated, BBC Wales has learnt.

Millions of diseased trees near buildings, roads and railways will have to be cut down.

Natural Resources Wales (NRW) warned of a "very significant impact" on the landscape.

So how does ash dieback behave?

8 March 2019

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People in high-vis jackets walk next to a car submerged in floods on the left of a split screen with a snowy road on the right

Atmospheric river dumps snow and record rain on California

Science & Environment

Phone footage of a skate surfacing out of grey waves to a rigid inflatable boat.ttack the side of a inflatable

Watch the moment a skate attacks a fisherman's boat off Shetland

NE, Orkney & Shetland

Smoke billows from house fire.

Video shows flames and thick smoke at house fire

A view from an EasyJet plane window as it flies above and to the side of an erupting volcano

Plane passengers film Iceland volcano lava from above

BBC News

East of England weather forecast

Composite image of Sir Keir Starmer and BBC Radio WM presenter Kath Stanczyszyn, who is pictured wearing headphones and speaking into a purple microphone

Will there be a Birmingham pub bombings inquiry?

Birmingham & Black Country

A huge Christmas tree on a flatbed lorry in font of the US Capitol building

US Capitol Christmas tree arrives in DC

Blurred still image from video clips shows people being taken out of a car

Migrants asked to rate trip in smuggler review videos

John Darvall sat on the left of a composite image, in a purple studio with a microphone in front of him. On the right is Keir Starmer with grey hair and brown glasses.

PM challenged on West's councils facing bankruptcy

BBC Newsline

BBC Newsline signed summary

BBC Scotland weather presenter Christopher Blanchett in front of a weather map of Scotland showing snow warnings.

Watch the Storm Bert weather forecast for Scotland

Mural of The Smiths bassist Andy Rourke unveiled

Parts of West Burton A power station being demolished

Power station demolition captured by drone

Man clinging to a cliff being rescued

Moment person clinging to cliff is rescued by helicopter

A woman in a hospital gown grins on the left and a monitor lit up with lungs is on the right of a split screen.

Woman gets first double lung transplant done by robot

Ryan Borgwardt

US kayaker who faked own death thought to have fled to Europe

Ruth Dodsworth in the BBC studios in Cardiff. She is sitting on an orange sofa. She has cropped blonde hair and is wearing a fitted mauve top,

Stalking was part of my daily life, says presenter

A Christmas tree with lots of blue and green lights. A building nearby has yellow lights and a red bow so it looks like a present. You can see people stood in front of the building.

Manx capital sparkles at Christmas lights switch-on

A woman has her make up done in a Swansea salon for Beaujolais Day

'Beaujolais day is Swansea's Christmas'

A woman polished a large Gromit statue at the launch of the Gromit Unleashed 3 trail in Bristol. The statue has a multicoloured sparkly pattern. The woman is wearing a red and white shirt and a black dress over the top and she has red hair cut in a bob style

Aardman unveils new Wallace and Gromit trail

Dylan Thomas, who is wearing a blue jumper and has brown hair, is smiling at the camera

Watch: Cardiff murderer's 999 call and arrest

Dylan Thomas, who had also tried to scale the Buckingham Palace fence, stabbed his friend 37 times.

Weather

Strong winds and flooding as Storm Bert arrives

The Met Office issues a yellow warning that runs between 05:00 and 19:00 GMT on Saturday.

Natasha Harding in a Liverpool football kit

Ex-football star 'took thousands'

Natasha Harding is facing claims that she took money for one-to-one coaching that she did not deliver.

Picture of a fox and Dafydd Hughes sat in the back of his van

How I obstruct trail fox hunting as a saboteur

Twenty years since the foxhunt ban, Dafydd Hughes on spending 14 years trying to sabotage all hunts.

Golden horn

Huge football golden horn proves lucky for Wales

The golden horn was played ahead of Wales' 4-1 victory against Iceland on Tuesday night.

BBC reporter, Megan Davies, is central looking at the camera. She in presenting the social video. On her left is are images of a dog and a traditonal fox hunting helmet. On her right is a fox. All three images have been photo edited into the shot rather than placed there. On the table is a coffee insulation cup

Are people still fox hunting?

The Hunting Act was given Royal Assent in November 2004 and came into force in 2005

Flamingos in water with snow on the grass behind

Wildlife explores snow-covered Wales

Animals in Wales ranging from geese to snow leopards at a zoo are shown in snow-covered scenes.

Sheep in snowy field

Snow blankets parts of Wales in 'taste of winter'

Snow started falling across parts of the UK on Monday night and led to wintry scenes on Tuesday.

Erin Lister

Man who binned Bitcoin says it's now worth £500m

James Howells accidentally threw out his hard drive in 2013 and has been searching for it ever since.

Sabrina Lee stood in the BBC studio wearing a thick black coat with a hood

What you need to know with snow forecast

Snow and ice could bring travel disruption from Monday evening, with a risk of power cuts.

McLaren driver trying to beat the boys to F1

Ella Lloyd is on a mission to make it to Formula 1 after joining McLaren's academy for 2025.

Darren Brown wearing grey polo and stood in front of police van

Watch as man who stabbed wife at their home arrested

Former Bridgend councillor Darren Brown stabbed his wife as she soothed their baby.

Rachel Davies wearing a hospital gown and lying in a bed.

Welsh cancer patient denied life-extending drug

Rachel Davies was diagnosed with secondary breast cancer in 2021 and the cancer has since spread.

Ceri Roberts

Lottery winner describes 'life-changing' impact

Ceri Roberts says her £1m lottery win has taken away the stresses of day-to-day living.

A woman in a wheelchair. She is wearing a black jumper and a white and black skirt.

The women who are asked 'how do you have sex?'

Disabled women say they are often asked if they can have sex or how do they have it.

Red buzzer with a hand on

Watch children's messages shame hospital smokers

Buzzers have been installed at hospitals which will prompt a loudspeaker message for anyone smoking.

Shane Lewis-Hughes

Rugby mental health in right direction - player

Shane Lewis-Hughes discusses the benefits of talking openly for rugby players.

Megan Davies with road sign saying Yr Wyddfa

Learn how to say Wales' tallest mountain in Welsh

How to say the Welsh names for the mountain formerly known as Snowdon - and the park where it sits.

Birdseye view of the destroyed buildings and fire crews battling the blaze

Drone footage shows firefighters battling blaze

The massive fire destroyed several buildings in the town centre of Abergavenny.

The street with orange blaze behind

More than 100 firefighters tackle town centre blaze

The huge fire broke out in the centre of Abergavenny on Sunday and continued into Monday morning.