Leonardo Nicoletti.

Data, code, and visual storytelling for tech and public accountability.
Featured
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crypto
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Bloomberg, 2025

Top Trump Crypto Buyers Vying for Dinner Seats Are Likely Foreign, Data Shows

The majority of top holders of Donald Trump’s memecoin have used foreign exchanges that say they ban US users, suggesting many purchasers are based abroad

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technology
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Bloomberg, 2025

AI Is Draining Water From the Areas That Need It Most

More than 160 new AI data centers have been built across the US in the past three years in regions already grappling with scarce water resources, a Bloomberg News analysis finds.

technology
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Bloomberg, 2024

AI Needs So Much Power, It's Making Yours Worse

An analysis of ~800K sensors that found a strong link between proximity to AI data centers and distorted power in residential homes.

technology
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Bloomberg, 2024

Elon Musk Is Now X’s Biggest Promoter of Anti-Immigrant Conspiracies

The billionaire owner is spreading debunked theories of undocumented voters swaying the US election, and growing his influence in the process

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technology
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Bloomberg, 2024

“Remigration” — How a White Nationalist Threat Spread From Austria to the US

An analysis of 3.1M social media posts, revealing the growing influence of European extremists global politics

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technology
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Bloomberg, 2023

Humans Are Biased. Generative AI is Even Worse.

Stable Diffusion's text-to-image model amplifies stereotypes about race and gender - here's why that matters

technology
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Bloomberg, 2024

OpenAI's GPT Is a Recruiter’s Dream Tool. Tests Show There’s Racial Bias

Recruiters are eager to use generative AI, but a Bloomberg analysis found bias against candidates based on their names alone.

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technology
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Bloomberg, 2024

AI Is Already Wreaking Havoc On Global Power Systems

A data investigation into 1000s of data centers which found that AI data centers are coming online so fast that electricity demand is straining global power grids and threatening clean energy goals.

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politics
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2022

The Most Dangerous U.S. States to Reside in

A Tool Designed with Female Assigned at Birth (AFAB) and Femme Folx' Safety in Mind

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gender
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The Pudding, 2022

When Women Make Headlines

Analyzing more than 382,000 headlines to see how women are represented (or misrepresented) in the news.

crypto
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Bloomberg, 2025

Trump Memecoin Shows Limits of Crypto’s Democratization Pitch

A data investigation revealing how whales cashed in $TRUMP at the expense of small buyers.

crypto
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Bloomberg, 2025

North Korea’s $1.5 Billion Heist Puts the Crypto World on Notice

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technology
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Bloomberg, 2025

OpenAI’s First Stargate Site to Hold Up to 400,000 Nvidia Chips

technology
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Bloomberg, 2024

Xsolla’s CEO Spends Like a Billionaire on Back of Company Cash

Aleksandr “Shurick” Agapitov, CEO of Xsolla, describes himself as a billionaire. We visualized exclusive data to show how Xsolla’s revenues support his lifestyle.

war
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Bloomberg, 2023

Israel’s Evacuation Order Forces Gaza’s Population Farther From Hospitals

Visualizing access to health services in Gaza, during the 2023 Israeli/Palestinian conflict.

green
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Bloomberg, 2023

Extreme Heat and Aging Power Grids Are a Deadly Combination

Visualizing heat patterns and EMS calls for heat related deaths during the 2023 heat wave.

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green
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Bloomberg, 2024

Federal Flood Maps Are No Match for Florida’s Double Hurricane

Many areas inundated by Hurricane Helene — and in the path of Milton — sit outside the zones where homeowners are required to buy flood insurance.

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technology
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Bloomberg, 2023

Elon Musk Is So Busy His Private Jet Is Taking 13-Minute Flights

Musk's plane has flown the most among some of the richest US billionaires with the frequency ramping up after he added Twitter to his portfolio of companies.

health
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Bloomberg, 2022

Hidden Fentanyl Is Driving a Fatal New Phase in US Opioid Epidemic

A visual exploration of the role of Fentanyl and COVID-19 in enabling the deadliest phase-yet of the opioid epidemic.

drugs
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Bloomberg, 2022

A Fruit Company Found Cocaine In Its Banana Shipment. This Dutch Town Paid the Price

Visualizing drug-related terrorist attacks in the Maasdriel community of South Holland.

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politics
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Bloomberg, 2022

Why the Fight for the House Was Surprisingly Competitive

A visual article that explores the widely held assumptions that gerrymandering would lead to fewer competitive House races in the 2022 election.

technology
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Bloomberg, 2022

Candidates Keep Pushing Election Denial Online - Because It Works

Visualizing "Stolen-Election" social media posts by 160 Republican candidates.

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cities
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TU Delft, 2022

CityAccessMap

An open-open source project for visualizing urban accessibility insights worldwide.

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politics
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Bloomberg, 2022

Italian Elections 2022

2022 Italian election results.

social
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2022

Work From Home: A Rich vs. Poor Issue

A visual essay about the inequalities that exist in the work-from-home paradigm.

social
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2021

London in the Pandemic Era

A visual narrative around COVID-19 and mobility in London.

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technology
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2021

Take it to the tweets, not the streets

In the digital era, hashtag activism may be a stronger predictor of legislative change than traditional protest

technology
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2021

#Hashtags as a Means for Political Action

Exploring the Impact of Location-based Hashtag Activism on Political Processes Using Geolocated Social Media Data.

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social
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2021

Homegrown Criminality

Visualizing new data on felony crime rates by citizenship status in the United States.

social
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2020

The Death Toll of Policing

Visualizing deaths caused by policing in the United States.

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social
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2019

Opioid Voices

Visualizing voices of the opioid epidemic through photography and text mining.

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green
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Metro Vancouver, 2019

Regional Ecological Health

Quantifying tree canopy cover and impervious surfaces for the metro Vancouver region.