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Hayley Warren

@hayleywarren.bsky.social

Data, graphics and visual storytelling at Bloomberg News | Stories: https://www.bloomberg.com/authors/ASy8ufuymtE/hayley-warren

1,762 Followers  |  233 Following  |  5 Posts  |  Joined: 15.11.2024  |  1.7465

Latest posts by hayleywarren.bsky.social on Bluesky

EFFIS - Statistics Portal

Graphics use analysis from the European Forest Fire Information System (EFFIS) database and satellite imagery from Copernicus Sentinel-2. See trends for your country here: forest-fire.emergency.copernicus.eu/apps/effis.s...

07.09.2025 11:22 — 👍 3    🔁 0    💬 0    📌 0
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Startling Images Show How Wildfires Decimated Europe This Year A record summer of blazes on the continent shows how governments and local communities can’t keep up with brutal fire conditions exacerbated by climate change.

Reporting by Laura Millan Lombraña and Joe Wertz for Bloomberg Green from Galicia shows how local authorities became overwhelmed.
www.bloomberg.com/news/feature...

07.09.2025 11:22 — 👍 1    🔁 0    💬 1    📌 0
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Wildfire blazes erupted across the European continent this Summer. Data shows fires were above average for the majority of countries, breaking decade long records for both area burnt and number of fires.

07.09.2025 11:22 — 👍 10    🔁 4    💬 2    📌 0
A scatter plot comparing countries based on total annual spending on food with the share of total consumer expenses on food. Kenya is an example where in absolute terms, relatively little is spent on food, but what is spent makes up a comparatively large portion of all combined consumer expenses.

A scatter plot comparing countries based on total annual spending on food with the share of total consumer expenses on food. Kenya is an example where in absolute terms, relatively little is spent on food, but what is spent makes up a comparatively large portion of all combined consumer expenses.

A map of mainland Europe, showing PFAS contamination sites. A clear accumulation can be seen in northwestern Europe and the east coast of Sweden, where the usage of firefighting foams containing the chemicals is recorded.

A map of mainland Europe, showing PFAS contamination sites. A clear accumulation can be seen in northwestern Europe and the east coast of Sweden, where the usage of firefighting foams containing the chemicals is recorded.

A map of the Iberian Peninsula, showing the electrical potential of different sites in megawatts, grouped by their type of generation.

A map of the Iberian Peninsula, showing the electrical potential of different sites in megawatts, grouped by their type of generation.

An interactive map of Australia, highlighting locations where traditional “democracy sausages” and cakes can be enjoyed while visiting polling places for the country’s current federal election.

An interactive map of Australia, highlighting locations where traditional “democracy sausages” and cakes can be enjoyed while visiting polling places for the country’s current federal election.

🖨️ The newest Data Vis Dispatch is here! Learn everything about the Iberian blackout, what Trump has been up to in his first 100 days, and where you can enjoy democracy sausages when voting. 🌭

www.datawrapper.de/blog/data-vi...

06.05.2025 16:17 — 👍 13    🔁 4    💬 0    📌 1
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Swedes and Finns have long monetized their forests. EU climate goals—seen as a threat to both family wealth and the two national economies—are fast becoming a lightning rod for anger. Stunning feature from
@jonasekblom.bsky.social for @bloomberg.com

Gift link: www.bloomberg.com/features/202...

07.02.2025 11:36 — 👍 5    🔁 3    💬 0    📌 0
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UK Bets on Unproven Tech to Limit Heathrow’s Climate Impact Sustainable aviation fuel and carbon capture form the core of the UK’s plans to achieve “Jet Zero,” despite airport expansions.

New from me: Rachel Reeves says Heathrow expansion can be compatible with climate goals. What would that look like in practice? I had a go at defining the challenge. With gorgeous datavis by @hayleywarren.bsky.social. Gift link:

31.01.2025 10:58 — 👍 27    🔁 10    💬 3    📌 2
A large area of Topanga State Park and nearby residential areas are highlighted with the perimeter of the Palisades fire on Jan. 7, 2025. The flight paths of two Super Scoopers cover the area, returning from the Pacific Ocean back to the fire area more than 8 times in one hour, represented with a chart showing altitude increasing from zero when over water and more than 1,500 km in height when preparing for water drops.

A large area of Topanga State Park and nearby residential areas are highlighted with the perimeter of the Palisades fire on Jan. 7, 2025. The flight paths of two Super Scoopers cover the area, returning from the Pacific Ocean back to the fire area more than 8 times in one hour, represented with a chart showing altitude increasing from zero when over water and more than 1,500 km in height when preparing for water drops.

"Pascal Duclos’ aircraft shook like a toy plane as he and his co-pilot navigated 100 miles per hour winds over arid canyons, the arcing blue curve of the Pacific Ocean and rising plumes of smoke from the voracious Palisades Fire."
www.bloomberg.com/news/feature...

23.01.2025 10:03 — 👍 1    🔁 0    💬 0    📌 0

Climate change requires attention to every part of the world we know, from science, to econ, politics, tech, behavior, etc.

At GREEN, Bloomberg News's global climate team, we try to cover it all.

Here's a (growing) starter pack with our amazing team!:
go.bsky.app/DfsWFHU

13.11.2024 17:01 — 👍 80    🔁 26    💬 5    📌 3
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The World’s Best Hope to Beat Climate Change Is Vanishing To have a chance against global warming, key economies and industries need to hit crucial emissions targets by 2030. They’re far off track.

To have a chance against global warming, key economies and industries need to hit crucial emissions targets by 2030. They’re far off track.

This article is free to read, along with all of our coverage of the COP29 climate summit

11.11.2024 22:06 — 👍 175    🔁 72    💬 10    📌 1

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