Global climate change has resulted primarily from the accumulation of carbon dioxide (CO2) and other greenhouse gases
(GHGs) in the atmosphere over the last 150 years. However, recent studies indicate that, on average, 40 per cent of the potential warming by GHGs is being masked by certain aerosols (and aerosol-cloud interactions) that increase the reflection of sunlight.

The availability and quality of clean water in many regions of the world is increasingly threatened by overuse, misuse and pollution. In this context, the relationship between forests and water is a critical issue that must be accorded high priority. This thematic study on forests and water was developed in the context of the Global Forest Resources Assessment programme.

This report is about the causes of high food prices, focusing on staple grains

This paper utilizes two different approaches to assess the impact of significantly scaling up investment in public agricultural research in developing countries in general, and in the CGIAR in particular. First, it models the potential impact of doubling research investment on agricultural (food) production and poverty reduction, and also on international food prices.

Genebanks are one of the world

This paper, a companion to Transport for Development, proposes a different approach

Global health has in recent years drawn increasing scientific, political and popular attention not only due to global epidemics themselves,but also because of the social activities and environmental conditions that shape health threats and influence those who are affected.

This report summarizes the results of a global study on the development and present status of shrimp fisheries, with a focus on direct and indirect social, economic and environmental impacts. The study reviews the current situation, problems and issues, as well as the solutions found and the trade-offs made.

Local democracy is a process whereby local leaders become accountable to citizens and responsive to their needs and aspirations. Environmental laws and interventions can support or undermine local democracy.

The purpose of this UN-Water GLAAS pilot report is to present the concept of a possible global, periodic, comprehensive reporting mechanism to inform policymaking in the sanitation and drinking-water sectors.