ICF International (United States)

Towards a Scientific Governance of the Earth System: A risk-based epistemological perspective on the evolution of international climate governance

Climate governance has historically been structured around the mitigation of anthropogenic greenhouse gas emissions. Although this approach has been fundamental, the growing complexity of the Earth System calls for an expansion of the conceptual foundations underpinning global ac...

A combined experimental and numerical study of heat losses in upward-facing helical cavity receivers

Cavity receivers improve the thermal efficiency of concentrated solar systems because the small aperture traps reflected sunlight and limits re-radiation and convective losses from the absorber. This study examines a small upward-facing helical cavity receiver, with an aperture d...

Rethinking family planning indicators: findings from a global expert consultation

The global family planning field has long relied on a few standard measures to assess program effectiveness and population-level outcomes, such as modern contraceptive prevalence, unmet need for family planning, and demand satisfied. Recognizing that these measures have substanti...