Summer rains have remained steady over the past 20 years, but are less than historic highs. Temperature has increased, and while the farmland per person is decreasing, population growth has been offset with improved yields.
While summer rains have increased during the past 20 years, temperatures have increased as well, amplifying the effects of droughts. Crop yields are low but the population is growing, pointing to rising food insecurity.
With the addition of elevation and land use and land cover data, we can show population density on a map much more effectively than if we simply color census areas. The resulting maps should allow better planning, especially in highly developed areas.
Long-term reduction in rainfall and increasing temperature threaten Chad's future food production prospects; combined with rapid population growth and zones of substantial conflict, increasing numbers of people will be at risk.
Recent trends in March-June, June-September, and March-September rainfall and temperature, identifying significant reductions in rainfall and increases in temperature over time in this area.
Crop areas in west central Kenya are affected by decline in rainfall over several decades; the effects may be exacerbated by overall warming in the region
Summer rains have remained steady for the past 20 years, but are below the long-term average. Current population and agricultural trends indicate increasing yields have offset population expansion, keeping per capita cereal production steady.
Modest declines in rainfall, accompanied by increases in air temperatures, declining farmland per person, along with trends in population and agriculture could lead to a 30% reduction in per capita cereal production by 2025.
The data shown here depict drying trends in one of the world's most food insecure regions. Decreasing rainfall since 1980 accompanied increases in air temperature greater than global warming.
Long-term reduction in rainfall and increasing temperature threaten Uganda's future food production prospects; combined with rapid population growth these factors could increase the number of people who are at risk during the next 20 years.
Reviews production, consumption, and reserves and important policies and regulations regarding production and trade of rare earths, including recently announced export quotas.
One of many map layers of the National Atlas giving county boundaries with metadata. The county boundaries map layer can be downloaded in shapefile or SDTS formats.
The Crater Lake Data Clearinghouse website is a gateway to information and data on Crater Lake with links to data downloads of bathymetry, maps and imagery, a fly-by movie, photos, and information on geology, maps, history, and biota.
Explains how industrial minerals are produced and overseen through governmental regulation, and describes the industrial mineral resources of central Colorado.
Description of Digital Line Graphs (DLG) with explanations of layers and feature types, scales, available products, media, prices, and links to search and order webpages.
What happens to all the scrap metal? How well does recycling work? This guide explains what we know about the overall processes of recycling various metals.
The Geographic Names Information System (GNIS) contains information about almost 2 million physical and cultural geographic features in the United States.
Geospatial analysis of factors affecting communities that are adjacent to Federal lands, especially those lands subject to varying public interest and visitation.
Database of mineral and material commodities with descriptions, contacts, and historical and current statistics of worldwide supply, demand, production and trade in Mineral Commodity Studies, Minerals Yearbooks, and special publications.
Statistics and information on worldwide supply, demand, and flow of minerals and materials essential to the U.S. economy, national security, and protection of the environment. Links to publications, recycling, and historical statistics.
Number and types of mineral facilities in the area affected by the earthquake, with comments on physical infrastructure that these facilities are likely to require.
With high property damage, loss of life and fire damage were relatively low. Why? The legal system encourages builders to follow code, the electrical grid was shut down early, and emergency response management was very effective.
Online map system providing downloadable geospatial data, primarily NSDI framework themes (that is, general geographic data such as transportation, boundaries, hydrography, orthoimagery, land cover, and elevation).
Links to mineral statistics from annual Mineral Yearbooks for each state in the United States and Puerto Rico, with contacts for further information, and means to apply for e-mail subscription service for regular updates.