John D. Harden
banner
jdharden.bsky.social
John D. Harden
@jdharden.bsky.social
Investigative data reporter | UC Berkeley lecturer

R devotee, py-curious
Your morning read.

How billionaires took over American politics: The concentration of wealth among the richest Americans is unlike anything in history — and so is billionaires’ influence in politics.

wapo.st/48nkqMN
November 21, 2025 at 3:35 PM
"Across the country, eating beef is the bigger contributor to harmful pollutants. But it’s not as simple as that. Its origins matter. Eating a steak or a burger in Milwaukee, where the meat comes from nearby dairy cows, generates fewer emissions than in Oklahoma City."
October 21, 2025 at 8:45 PM
I used a headless browser using rselenium to cycle through each species in the city’s plan to download the corresponding distribution list, creating a database of tree ranges.

Our story: wapo.st/43ijIxq

Maps and illustrations by Dylan Moriarty and Tucker Harris.
October 20, 2025 at 5:14 PM
We used the USDA’s PLANTS database, which has distribution data built into it.
October 20, 2025 at 5:14 PM
So, @marissajae.bsky.social and I knew D.C. was changing up its canopy, but we wanted to explore what which regions of the country would be most represented in the city’s planting strategy.

The data pointed to the midwest and gulf coast.

www.washingtonpost.com/dc-md-va/int...
October 20, 2025 at 5:14 PM
15 teens. 300 miles. One mighty ancestral river, running free. wapo.st/4m81PJf

‪By Reis Thebault, Alice Li and Melina Mara
August 8, 2025 at 5:01 PM