The authors evaluated the effects of a large-scale ethanol cooking fuel promotion program in Dar es Salaam, Tanzania, and found substantial uptake of ethanol cooking. However, alternative fuels were not fully replaced under this scheme. The report concludes that improving the relative convenience of ethanol as a cooking fuel is needed to achieve broader positive impacts. 

Addressing the dual needs of development and decarbonization in low- and middle-income countries requires significant increases in public and private investment and project implementation. Announced in 2022 by the US Department of State, The Rockefeller Foundation, and the Bezos Earth Fund, the Energy Transition Accelerator (ETA) aims to drive such increases by leveraging carbon credits as a sector-wide channel for energy transition finance.

The Energy Transitions and Investment in Emerging Markets: Navigating Shifting Undercurrents summit was convened on April 8, 2025, during a moment of profound disruption and transformation. In an era marked by the dismantling of US foreign assistance programs and rising pressures on multilateral systems, the event brought together the Duke University community and leading practitioners to take stock and ask urgent questions about what comes next.

Clean cooking technologies have the potential to deliver substantial health, environmental, climate, and gender equity benefits. We use the BAR-HAP model to conduct the first global analysis of the regional and global costs and benefits of several subsidy and financing policies supporting household transitions to cleaner technologies. The analysis provides evidence-based estimates of these interventions' impacts, while remaining conservative about factors such as stove usage, subsidy leakage, and exposure levels, for which there remains considerable uncertainty.

Exertional heat illness poses a significant risk for workers, athletes, and military personnel participating in outdoor activities during hot weather. An important component of heat safety is monitoring environmental conditions through heat stress indices like the wet bulb globe temperature (WBGT), which accounts for factors such as air temperature, humidity, wind, and sunlight, and adjusting activity as conditions get progressively hotter.

Oceans@Duke Director Stephanie Rousso discusses her personal experience working with women fisherfolk to promote sea turtle conservation in an opinion for Frontiers in Ocean Sustainability. "Globally, women are blending traditional knowledge with modern science, taking on challenges head-on, and redefining what it means to work toward a sustainable ocean," she writes. "While these global initiatives are empowering women at a large scale, my personal journey has shown me how deeply transformative their contributions can be at the grassroots level."

This report empirically examines the determinants of private participation in flood mitigation programs that use a payment for ecosystem services (PES) framework and suggests improved PES program designs and enhancements to their flood mitigation effectiveness. It offers evidence suggesting income from farming and potential participants' past experiences with PES programs may increase participation in programs aiming to mitigate flooding and that in turn could reduce economic damages from flooding impacts.

Extreme heat directly impacts health and can exacerbate substance use. Rural communities face high risks due to those areas’ higher rates of heat-related hospitalizations and disproportionate effects of substance use. This commentary explores the connection between heat and substance use in rural communities and proposes policy, research, and practice recommendations that can be tailored to fit the local rural context.

The Nicholas Institute's Tim Profeta contributed an essay to "How to Advance Environmental Protection During a Turbulent Era," a special section in the March/April issue of Environmental Forum. The Trump administration is expected to take up a deregulatory agenda—which environmentalists anticipate with trepidation but which businesses generally welcome as an appropriate relaxation of regulations they say inhibit a creative free market and stymie investments in needed projects.

Increased need for electricity is driving elevated demand for power companies to rapidly build out their generation capacity. But Nicholas Institute research shows that, with strategic timing of load use, such demand could be met by the existing power grid.