Erwan Rivault
Data visualisation designer at BBC News focusing on satellite data, climate change and cartography | previously at @esa.int | Co-founder of @chartle.cc - A daily chart game
- Reposted by Erwan RivaultThis is fantastic. Engaging people with data through game play. Also has that very Gapminder-ish quality of challenging assumption. Love it!
- Launch day 🚀 We’ve just released @chartlecc.bsky.social - a daily chart game! Your job is to guess which country is represented by the red line in today's chart. You get 5 tries, no other clues! Play today, come back tomorrow for a different chart with new data and share with your chart friends 📈
- Reposted by Erwan RivaultIt's official 🎉 Visualising Climate 2026 is here! visualisingclimate.com First international conference of its kind, it'll bring together artists, scientists, journalists all moved by the same desire to better communicate our changing climate 🌍 🗓️ Join us in Bologna, Nov 4-6 #dataviz #climatecrisis
- Join us in Bologna, Italy, 4–6 Nov 2026 for Visualising Climate — the first global conference fully dedicated to climate data visualization and its power to transform public understanding of a changing planet. Come see the data. visualisingclimate.org #VisualisingClimate2026 #DataVis #ClimateCrisis
- Scientists have just unveiled the most detailed data yet of the terrain hidden under Antarctica’s ice. We mapped it and compared it to the previously best available data for our story with @markpoynting.bsky.social www.bbc.co.uk/news/article...
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The global warming trend continued in 2025. Each of the past 11 years (2015–2025) has been among the 11 warmest on record. Explore more data from #CopernicusClimate in the Global Climate Highlights 2025. #GCH2025 🔗 climate.copernicus.eu/global-clima... @ecmwf.int - Reposted by Erwan RivaultWhich country consumes the most beer per person? Think you can guess it in 5 tries or less? Have a try at chartle.cc
- New exciting update to chartle.cc 📈 You can now use the *Explore data* mode after finishing a game to find out what all the other grey lines represent. This has been requested by many of you, thanks for all the feedback! Let us know what you think!
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- Reposted by Erwan RivaultWhich country holds the world’s largest proven crude oil reserves? Think you can guess it? Have a try at chartle.cc
- Reposted by Erwan Rivault#30daymapchallenge · Jour 30 · Relooking 🌍 Europe · Europa · Ευρώπη · Європа 🔍 Zoomez pour découvrir les villes d'Europe dans leur langue. 🔽 L'ancienne carte, en commentaire, utilisait un texte de substitution, réalisée pour le #30daymapchallenge 2024. #cartographie #map #europe #europa
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- Reposted by Erwan RivaultCan you guess the country in red just by analysing the chart? Have a try at chartle.cc
- Reposted by Erwan RivaultCan you guess which country suddenly stopped all its nuclear power generation in the early 2010s, and then slowly restarted it? Have a try at chartle.cc
- The Israeli military is placing large yellow blocks to delineate the newly established Yellow Line in Gaza - issue is, it’s off by over 500 meters in some areas, shrinking the Palestinian safe area. www.bbc.co.uk/news/article...
- Do you enjoy playing chartle.cc? We’re opening up to the community! Are you a scientist, journalist, researcher or just a data-enthusiast and would like to submit your own data (it should be a country-based time series)? Get in touch with us - we’d love to feature it!
- DMs open or email me at hello@erwanrivault.com
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- Reposted by Erwan RivaultCan you guess which country went from producing almost 70% of its electricity from coal in the 1980s to just 0.82% in 2024? Think you know? Try it at chartle.cc
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- Reposted by Erwan RivaultNEW: How mega batteries are unlocking an energy revolution Massive shipping containers packed with powerful batteries are shoring up grids & extending the use of clean power ig.ft.com/mega-batteri... Latest visual story w/ @samlearner.bsky.social @inari-ta.bsky.social @samjoiner.bsky.social
- Daily Chartle player? We’ve got an update for you 👀 You can now see how everyone else scored when you finish the game (this is today's game). Keep the feedback coming, it’s helping us make chartle.cc better!
- Reposted by Erwan RivaultCan you guess which country has the most hospital beds per capita in the world? Have a try by playing at chartle.cc
- Starting a 3-month pilot today with the BBC’s brand-new satellite data team! We'll be focusing on using remote sensing data for news stories and longer-term investigations 🛰️ 🌍 Got tips, an upcoming paper or data, or just ideas you'd like to share with us? DM or email me at erwan.rivault@bbc.co.uk
- It's been a week since we launched @chartle.cc with @adnaanj.bsky.social and we had an amazing start! - Average of 700 users/day - Record 1.2K users yesterday - From 78 countries - 66% win overall - 2m 18s average engagement Thank you to all who played + shared the game Any feedback, send our way!
- Launch day 🚀 We’ve just released @chartlecc.bsky.social - a daily chart game! Your job is to guess which country is represented by the red line in today's chart. You get 5 tries, no other clues! Play today, come back tomorrow for a different chart with new data and share with your chart friends 📈
- A chart-themed game in your datavis dispatch this week! @chartle.cc 📈
- This week's Dispatch brings a range of topics — U.S. politics, gender issues, the economy, conflict, and climate — as well as a chart-themed game at the end. 📊 🕹️ www.datawrapper.de/blog/data-vi...
- Today's chartle game is almost exactly like 📈
- Which country has the highest number of patent applications per million people worldwide? Do you think you can solve it? Have a try at chartle.cc
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- Launch day 🚀 We’ve just released @chartlecc.bsky.social - a daily chart game! Your job is to guess which country is represented by the red line in today's chart. You get 5 tries, no other clues! Play today, come back tomorrow for a different chart with new data and share with your chart friends 📈
- I’ll explain a bit more some of the functionalities and what’s happening behind the scenes here now that the game is live! If you didn’t play on a previous day, don’t panic! You can access the history to play past games and also see how many tries it took you to succeed on previous days.
- You can also check your stats and start building a streak! It might look a little empty for now since we’re only 4 days in, but I’m excited to see how it will grow over the next weeks! You can log in with Google to ensure your scores are saved and play across multiple devices using the same account
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View full threadFor now, we’re using the hundreds of datasets compiled by @ourworldindata.org They source data from the World Bank, FAO, UN, WHO, and more, all consistently formatted, which makes it easy for us to connect to their API and use the data with just a few filters.
- Reposted by Erwan RivaultWhich country in the world has the highest share of women in parliament? (and has since 2003..!) Can you solve it? Have a try at chartle.cc
- Parts of the Mediterranean Sea reached 30C this week, much earlier than usual, raising fears for marine life. For some areas, this is 6 or 7C warmer than usual at this time of year. Our story with more maps by @markpoynting.bsky.social and me here: www.bbc.com/news/article...
- Had an amazing time at #LPS25 this week, where @esaearth.esa.int unveiled the first images from the Biomass satellite. Read our story with @esmestallard.bsky.social and see the stunning new images for yourself:
- Excited to be at the Living Planet Symposium #LPS25 next week! I’ll be co-presenting with @janatausch.bsky.social on Thursday afternoon, sharing how we make innovative climate data visualisations in the BBC & FT newsrooms. Let me know if you’re around and want to grab a coffee and chat!
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- New chart heavy story: As the conclave is about to start, we explored how it became the most global and unpredictable in history, a legacy of Pope Francis
- We're only in April, but it's already the worst UK wildfire season on record Over 29,200 hectares burnt so far, fuelled by an unusually dry spring, as satellite data shows
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- Reposted by Erwan RivaultThis dataviz is absolutely amazing 😍 Global bird species' conservation status displayed as a massive flock! By Andrea Garrec, longlisted for the 2024 Information Is Beautiful Awards www.informationisbeautifulawards.com/showcase/731... #dataviz 📊🌏🧪🐦🦉🦆🦅
- Reposted by Erwan RivaultThe Bellingcat challenge is back (and set by me this week)! 👉 challenge.bellingcat.com 👈 This week's challenge uses satellite images taken with Landsat 8 - but the colours aren't always 'normal'... 🛰️ Can you complete them? 🔍
- The world's largest iceberg, A23a, has now run aground in shallow waters about 80km from South Georgia island. I've mapped bathymetry data from @bas.ac.uk in Blender with the iceberg’s latest location to understand how this unfolded. With @georginarannard.bsky.social www.bbc.co.uk/news/article...
- 🚨 New job alert! 🚨 Come join me at the BBC to find stories using satellite data! This is a remote sensing scientist job applied to news, where you'll use machine learning and build tools to analyse satellite imagery for our in-house investigations. Happy to chat or answer any questions!
- NEW: Global sea-ice has fallen to a record low, breaking the previous minimum set in 2023. www.bbc.co.uk/news/article...
- Both Arctic and Antarctic sea-ice extents are significantly below average for this time of year, with Arctic sea-ice currently at a daily record low.
- The missing sea-ice is striking at both poles - particularly in Antarctica’s Weddell Sea and the Arctic’s Bering and Barents Seas.
- Does China really “operate” the Panama Canal, as Trump repeatedly claimed? We've broken down the facts and mapped China's influence around the canal to find out
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- What would happen if key ocean currents that bring warm water from the tropics to the North Atlantic collapse? Temperatures in northern Europe would drop drastically, studies suggest. Our full story on the risks of AMOC collapse: www.bbc.com/news/article...
- New @planet.com satellite image shows massive oil spill stretching across the Kerch Strait, after severe weather damaged two oil tankers. Up to 5,000 tonnes of oil has leaked, with the spill now spreading to the Black Sea and the Sea of Azov. www.bbc.co.uk/news/article...
- The world's largest iceberg, A23a, is so big you can see it from 850,000 miles away via the DSCOVR EPIC satellite in Lagrange-1 point (the zoomed image is from MODIS).
- After 30 years stuck on the seafloor, it embarked on a 2,000-mile journey across the Southern Ocean. It is now less than 300 km from South Georgia Island, potentially putting the penguins and seals there in danger if it drifts closer.
- Our story with @georginarannard.bsky.social with more pics and video
