A graphic of a laptop on a light green background, the screen showing the Royal Geographical Society's interview with journalists about the Green to Grey data journalism investigation.

Thanks to @rgs.org for this interview with Arena journalists @zeynepsentek.bsky.social and @leosal.bsky.social on the methodology and impact of our #GreenToGrey #DataJournalism investigation.

🔗 Read the piece at the link below 👇 [1/2]

A webpage showing the announcement of the Metin Göktepe awards, on a laptop screen.

A huge congratulations to the Turkish team on the #GreenToGrey project, who won a Special Jury Prize at the Metin Göktepe Awards today!

🔗 Read more at the link in comments and visit greentogrey.eu

"How much nature is Europe losing to construction? The cross-border investigation “Green to Gray,” shortlisted for this year’s Sigma Awards, set out to find the answer—and the scale of the loss surprised even the researchers."

Thanks to Athina Thanasi for this iMEdD piece on #GreenToGrey.

Link:👇 🧵

Green to Grey is a pioneering collaboration between journalists and scientists counting every green space lost in Europe between January 2018 and December 2023.
greentogrey.eu #GreenToGrey

#Impact news: one month after publication, our #GreenToGrey investigation has been read and watched by over 3 MILLION people around the world.

A huge thanks to everyone who worked on, read and shared this work, by a consortium of journalists and scientists across Europe [link in thread].

‘Green to Grey’ captured Europe’s changing landscape How an investigation grew from a single-country story to a worldwide citizen science app

Want to know how we reached millions of people with the #GreenToGrey investigation? This week, I wrote up our comms and impact process for @tbij.bsky.social's newsletter The Spark.

[1/2] #journalism #impact

the-spark-tbij.beehiiv.com/p/green-to-g...

Green to Grey – How Europe is squandering the little nature it has left Green to Grey is a pioneering collaboration between journalists and scientists counting every green space lost in Europe between January 2018 and December 2023.

...the results of developers pouring concrete on a vibrant wetland in Turkey. It is now a luxury yacht repair facility.

Green to Grey reveals the scale of Europe's nature and cropland loss for the first time.
Read more and find out how to take action at greentogrey.eu | #GreenToGrey

Terres grises - 28 minutes (02/10/2025) - Regarder l’émission complète | ARTE Marie Bonnisseau s'intéresse à l'enquête menée par onze médias européens, dont “Le Monde”, sur la disparition alarmante de la nature et des terres agricoles en Europe au profit de projets de construct...

Enquête #greentogrey
Ampleur artificialisation sols en #Europe
Petites zones sous les radars=PERTE d'HABITATS FANTÔMES ex. parc en ville/place #Wilson #Nice NON au parking ! Routes, golfs, marina à yachts. Equivalent 600 terrains de foot bétonnés/jour en Europe !
nina.no
www.arte.tv/fr/videos/12...

❓What is the main driver of land use across #Europe?

The #GreenToGrey project reveals the scale of Europe's nature loss, equivalent to 600 football fields a day. That’s 1.5x faster than officials previously estimated.

Find out how to act on our groundbreaking investigation at greentogrey.eu/about

Construction is eating up Europe’s remaining green areas much faster than previously estimated by the EEA - who, by the way, told us that their methodology ”does not completely meet the requirements of statistical robustness”.

#GreenToGrey @longplay.fi

Green to Grey – How Europe is squandering the little nature it has left Green to Grey is a pioneering collaboration between journalists and scientists counting every green space lost in Europe between January 2018 and December 2023.

@datadista.com 🇪🇸
De Standaard 🇧🇪
DIE ZEIT 🇩🇪
FACTA.eu 🇮🇹
@wyborcza.pl 🇵🇱
@lemonde.fr 🇫🇷
@longplay.fi 🇫🇮
@reportersunited.gr 🇬🇷
theblacksea.eu 🇹🇷
@theguardian.com 🇬🇧

Read more and find out how to take action at greentogrey.eu | #GreenToGrey

Climate Arena Climate Arena is where world-changing climate investigations are born. Well – that’s the aim! This year, we will be at the Gellert Campus of Corvinus University in Budapest, Hungary.

[2/3] ...you can find out about how we developed this investigation, the first of its kind in #Europe.

Tickets & programme: climatearena.eu

#GreenToGrey is a collaboration initiated by Arena, NRK and our scientist partners at NINA 🇳🇴, alongside:

Thanks to FTM for including #GreenToGrey in their Europe Uncovered newsletter this week 🌍 greentogrey.eu

Inside the everyday Facebook networks where far-right ideas grow The Guardian spent a year studying an online community trading in anti-immigration sentiment and misinformation. Experts say such spaces can play a role in radicalisation

One of the most important #dataviz investigations to come out recently from @porcelinad.bsky.social*** & team @theguardian.com

***Who, by the way, published same week she also published our collaborative data investigation, #GreenToGrey. Much sleep deserved.

www.theguardian.com/world/ng-int...

Revealed: Europe losing 600 football pitches of nature and crop land a day Investigation shows extent of green land lost across UK and mainland Europe to development from 2018 to 2023

#Europe losing 600 football pitches of #nature & crop land a day/30 sq km a week. New investigation shows an area the size of #Cyprus – was turned #GreenToGrey 2018-2023
www.theguardian.com/environment/... #Portugal #Melides #CostaTerra #Golf #EU #Natura2000 #SDG15

Long Play tutki rakentamisen vaikutuksia luontoon Euroopassa: maata uhrataan Ahvenanmaan verran joka vuosi

Rakentaminen syö Euroopassa enemmän maata kuin aiemmin on arvioitu.

Kun rakentamisen alle jääneen luonnon määrän suhteuttaa asukaslukuun, Suomi on Euroopan toiseksi pahin luonnon tuhoaja.

Long Play tutki rakentamisen luontovaikutuksia eurooppalaisten medioiden #GreenToGrey -yhteistyöhankkeessa.

🎅 Lapland tourism is eroding the wilderness it sells 🎅

Last spring, while reviewing the initial data from the #GreenToGrey project, we zoomed in on Lapland. Many of the developments in the region appeared to be linked to tourism. But was that a real trend or just anecdotal?

1/x

Artificialisation : l'Europe coulée sous le béton "Chaque seconde, les bulldozers, les grues et les bétonnières arrachent 48 mètres carrés (m2) à la nature européenne".

#GreenToGrey: l'artificialisation des sols est deux fois supérieure aux prédictions des autorités européennes.
Une destruction alarmante de la nature en Europe.
Avec Raphaëlle Aubert, journaliste pour @lemonde.fr et co-autrice de l'enquête #GreenToGrey.
Interview européenne par Baptiste Maisonnave.

#GreenToGrey, a cross-border investigation - initiated by Arena for Journalism in Europe and NRK. 41 journalists & scientists from 11 countries. Using satellite imagery, artificial intelligence, and on-the-ground reporting, the investigation reveals the extent of Europe’s nature and cropland

Bluesky

#GreenToGrey: “Very soon if we continue to allow piecemeal developments across areas of outstanding natural beauty, they are going to cease to have any landscape value,” says Jackie Copley of @cprecountryside.bsky.social
www.theguardian.com/environment/...

"Wow. I just read the whole thing, to the tune of 41.000m²... This is a powerful piece of journalism"

The words of a reader after yesterday's #GreenToGrey launch.

Explore the greentogrey.eu investigation into nature loss.

💡We suggest how you can take action at the 'About' page.

Green to Grey – How Europe is squandering the little nature it has left Green to Grey is a pioneering collaboration between journalists and scientists counting every green space lost in Europe between January 2018 and December 2023.

It’s not unspoken, it’s the central message of this piece and the project. The #GreenToGrey website highlights western consumerism as a key driver and the way “wealthy countries develop not only essential things, but unnecessary things, from golf courses to artificial ski slopes.”

greentogrey.eu

Cementificazione

Scritta così fa più paura. L'#Europa sta diventando grigia, il report: "Perdiamo 600 campi da calcio di verde al giorno" www.fanpage.it/innovazione/scienze/leur...

@ambiente

#greentogrey #climatechange

NRK avslører europeisk naturtap: Norge topper verstingliste

Stas å samarbeide m dyktige folk i @journalismarena.eu, @rubensolvang.bsky.social @zanderventer.bsky.social + ti mediehus, om en europeisk versjon av Norge i rødt, hvitt og grått. #greentogrey viser hvordan Europas natur taper. Og ingen bygger mer per innbygger enn Norge: www.nrk.no/dokumentar/x...

New #GreenToGrey analysis includes land of any size, where #EEA excludes areas <50,000 sq metres.

BUT many little areas add up!
“resulting in estimates 1.5 times larger than the EEA’s calculations”

Let’s help them expand this analysis globally visit greentogrey.eu

#sentinel2 #citizenScience

The findings from the #GreenToGrey project have been leading the news in Norway today. Yet, Ireland isn’t far behind when it comes to converting nature and farmland per capita to make way for construction, housing, roads, luxury developments, etc. Has this been getting much coverage back home?

Arena’s ‘Green to Grey’ project reveals scale of Europe’s nature loss Our collaboration with 11 newsrooms shows Europe’s undeveloped land is disappearing up to 1.5 times faster than previously thought, equivalent to 600 football pitches per day.

💚 #GreenToGrey has got to be the biggest project I've worked on, not only geographically, but in level of revelation, clarity and potential impact. So you know it's got a good behind the scenes story...

My piece on how @journalismarena.eu makes this happen:
journalismarena.eu/arenas-green...

How did we bring the #GreenToGrey project to life?

Read Arena's latest blog post, and our in-depth methodology page (both links in comments) for the behind-the-scenes story of how this massive cross-border, collaborative data project was built. The story includes:

[1/4]

Près de 50 m² de nature détruits chaque seconde : visualisez le bétonnage à grande échelle de l’Europe Hangars, usines géantes, villas… Pixel après pixel, l’analyse inédite d’images aériennes de notre enquête « Green to Grey » dévoile les causes et l’ampleur de l’artificialisation qui transforme le con...

#GreenToGrey, c'est une collaboration entre 11 médias européens lancée par le norvégien NRK et coordonnée par le réseau @journalismarena.eu. C'est aussi l’analyse la plus fine de la consommation d’espaces naturels jamais réalisée à l’échelle européenne.

Chaque année, 1 500 kilomètres carrés de nature et de terres agricoles disparaissent sous les constructions en Europe. À l’aide d’images satellites et d’un modèle d’intelligence artificielle, nous révélons l’ampleur et les conséquences de cette artificialisation massive.

#GreenToGrey