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Recent posts

Tracking Worldwide HIV Infections

This week Washington is hosting the International AIDS Conference, and one of my colleagues crafted this interactive to show how HIV infection rates differ by country and region.

The red lines below show the percentage of the adult population infected with the disease in Middle, Eastern and Southern Africa, regions in which about eight percent of the population is infected. In some countries, though, the rate is higher than 20 percent:

Mapping ‘Poisoned Places’

NPR and the Center for Public Integrity have teamed up for a series of this stories this week about facilities that emit toxic chemicals. One part of the package is this interactive map, which plots more than 13,000 regulated facilities across the country — and also colors the dots based on the potential risk to people living around them: 

See a larger interactive version of the map, which was created with Development Seed’s TileMill application and hosted on its MapBox service. 

Mapping Oil/Gas Drilling in PA

Scott Detrow and I mapped drilling for NPR’s StateImpactPA site:

First, while 32 counties host gas wells, the bulk of activity is still taking place in a handful of drilling-heavy counties. More than 60 percent of the 739 wells drilled between January and June were located in the five busiest counties — Bradford, Tioga, Washington, Susquehanna, and Greene. Bradford and Tioga Counties alone are responsible for nearly 40 percent of 2011 drilling activity. Here’s a proportional symbols map of wells drilled: