“Environmental and Agricultural Impacts of Dietary Shifts at Global and National Scales” Food, Agriculture, Biodiversity, Land Use, and Energy Consortium, July 2021
“America recommits to climate action and sustainability: can it get the world back on track?,” SDG Action, June 2021.
“How to Build a Carbon Neutral Economy for the United States by 2050,” Food and Land Use Coalition, May 4, 2021.
“What Americans can learn from Northern Ireland: Walls make bad neighbors,” with Joseph M. Brown, America: The Jesuit Review, October 2, 2019.
“Northern Ireland’s Troubles began 50 years ago. Here’s why they were so violent,” with Joseph Brown, The Washington Post – Monkey Cage, August 22, 2019.
“The benefits of taxing cigarettes in middle income countries” Editorial with Thomas E. Novotny. BMJ 2018, April 2018
“Malaria: The Cost of Making the Poor Pay,” with Jeffrey D. Sachs and Awash Teklehaimanot, SciDev.net, October 31, 2005.
“Time for Chile’s Next Step in Economic Development,” with Jeffrey D. Sachs, Business Chile, November 2004. [Spanish version here]