Famine Early Warning Systems Network (FEWS)
A leading provider of early warning and analysis on acute food insecurity, FEWS NET provides objective, evidence-based analysis to help government decision-makers and relief agencies plan for and respond to humanitarian crises.
Global Environmental Alert Service (GEAS) -United Nations Environment Protgramme (UNEP)
A mechanism for identifying, selecting and communicating early warning information on emerging issues to decision makers on a regular basis across UNEP's focus areas. The GEAS continuously scans the scientific literature, analyses results of earth observations and other data sources to produce widely distributed alerts, focusing on policy relevant environmental hotspots, environmental science, and near real-time environmental hazards in an easily understandable format
Global Information and Early Warning System (GIEWS) - FAO
GIEWS aims to keep the world food supply/demand situation under continuous review, issue reports on the world food situation, and provide early warnings of impending food crises in individual countries.
The Union of Concerned Scientists (UCS) provides an interactive way to learn about the local consequences of global warming. The Climate Hot Map allows you to travel the world, exploring the places (or "hot spots") where scientists have gathered evidence for climate changes that are already underway and where they are now assessing the risks associated with further warming.