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This research paper examines biological nitrogen fixation (BNF) across a 60,000-year chronosequence on volcanic soils at Llaima volcano in south-central Chile to understand how nitrogen gain couples with ecosystem succession.

This executive summary describes a project and the creation of the Nitrogen, Society, and Environment Network (Nnet) to increase knowledge of the continental nitrogen cycle in Latin America. The initiative focuses on measuring biological nitrogen fixation (BNF), atmospheric deposition, and the impacts of human activities—such as soy production, mining, and urbanization—on nitrogen reservoirs and ecosystem biodiversity across several countries.

This executive summary describes a project led by the Inter-American Institute for Global Change Research to establish the Nitrogen Human Environment Network (Nnet). The project aims to map the nitrogen (N) cycle across Latin America, analyzing the impacts of human activities—such as fertilizer use, soy production, and mining—on ecosystem processes and biodiversity to provide guidelines for regional nitrogen management policies.

This policy brief explores how the Planetary Boundaries framework can be used to define the 'global level of ambition' for the UN 2030 Agenda for Sustainable Development. It argues that by downscaling global environmental limits to national or regional levels and combining them with consumption-based accounting, countries can better implement Sustainable Development Goals (SDGs), particularly SDG 12 on Sustainable Consumption and Production.

A study conducted in the Marina catchment area of Singapore from April 2007 to March 2008 analyzed the deposition fluxes of nitrogen (N) and phosphorus (P) in aerosols and rainwater, finding that wet deposition dominated N species while dry deposition dominated P species.

This case study examines the environmental information infrastructure supporting lentil production and conservation tillage in Canada, specifically within the Prairie region. It analyzes how information flows between farmers, researchers, and organizations to manage soil fertility and erosion, while identifying gaps between farm-level informal monitoring and national-level formal reporting.

This policy brief describes a research project by the Inter-American Institute for Global Change Research (IAI) and the Brazilian National Institute for Space Research (INPE) focused on nitrogen cycling in Latin America. The project aims to provide scientific evidence to support policies for sustainable nitrogen management in agriculture and wastewater treatment to prevent soil degradation, water pollution, and threats to food security.

This report details several research initiatives supported by the Inter-American Institute for Global Change Research (IAI) across the Americas. These projects focus on the intersection of environmental science and public policy, addressing nitrogen cycling, tropical dry forest conservation, climate services for agriculture, freshwater ecosystem risks, malaria transmission in the Amazon, water security in arid regions, oceanic carbon sequestration, the impact of highways on zoonotic diseases, and urban hydrological vulnerability.

This document is a collection of project briefs from the Inter-American Institute for Global Change Research (IAI) detailing various scientific research initiatives across the Americas. The projects focus on environmental sustainability, climate change adaptation, and the intersection of ecological health and human well-being, covering topics such as the nitrogen cycle, tropical dry forests, climate services, malaria transmission in the Amazon, freshwater ecosystem risks, water security in arid zones, ocean dynamics, the impact of road construction in rainforests, phytoplankton services, and urban hydrological risks.