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Projections of urban growth indicate areas where biodiversity is at high risk. The AAG Smart Brief is a fantastic source of geographic news. This is what they said about this article: "Areas such as tropical Africa and eastern China are expected to be hot spots of urbanization during the next several years, according to researchers, who used satellite imagery and other data to project future urban expansion through 2030. 'We're not forecasting population, we're forecasting the expansion of urban space,' said Yale University geographer Karen Seto. Their efforts could be used to assist conservation initiatives, Seto noted." Tags: AAG, urban, sprawl, land use, urban ecology, biogeography, unit 7 cities, environment.
Via Seth Dixon
By moving the slider, the user can compare 1990 false-color Landsat views (left) with recent true-color imagery (right). Humans are increasingly transforming Earth’s surface—through direct activities such as farming, mining, and building, and indirectly by altering its climate.
This interactive feature includes 12 places that have experienced significant change since 1990. This is an user-friendly way to compare remote sensing images over time. Pictured above is the Aral Sea, which is and under-the-radar environmental catastrophe in Central Asia that has its roots in the Soviet era's (mis)management policies. Tags: remote sensing, land use, environment, geospatial, environment modify, esri, unit 1 Geoprinciples, zbestofzbest.
Via Seth Dixon
Projections of urban growth indicate areas where biodiversity is at high risk. The AAG Smart Brief is a fantastic source of geographic news. This is what they said about this article: "Areas such as tropical Africa and eastern China are expected to be hot spots of urbanization during the next several years, according to researchers, who used satellite imagery and other data to project future urban expansion through 2030. 'We're not forecasting population, we're forecasting the expansion of urban space,' said Yale University geographer Karen Seto. Their efforts could be used to assist conservation initiatives, Seto noted." Tags: AAG, urban, sprawl, land use, urban ecology, biogeography, unit 7 cities, environment.
Via Seth Dixon
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Today, a country’s marine economic area is defined by its Exclusive Economic Zone (EEZ), a 200-nautical mile-wide (370 km) strip of sea along the country’s national coast line (hi-res image). This regulation, which was installed by the ‘UN Convention on the Law of the Sea’ in 1982, grants a state special rights to exploit natural (such as oil) and marine (for instance fish) resources, including scientific research and energy production (wind-parks, for example). Questions to ponder: how does this series of buffer zones around the Earth's land masses impact politics, the environment and local economies? Where might the EEZs be more important to the success of a country/territory than other regions? Tags: economic, environment, political, resources, water, sovereignty, coastal, environment depend, territoriality, states, conflict, unit 4 political.
Via Seth Dixon
A refugee is a person who has been pushed away from their homeland and seeks refuge in another place. The United Nations High Commissioner on Refugees (UNHCR) provides a more narrow definition of a refugee as someone who flees their home country due to a “well-founded fear of being persecuted for reasons of race, religion, nationality, membership of a particular social group or political opinion.”
As Neal Lineback notes in this Geography in the News post, not all refugees are covered by this definition. Environmental refugees have been forced to leave their homes beause of soil degradation, deserticfication, flooding, drought, climate change and other environmental factors.
Tags: environment, environment depend, migration, unit 2 population.
Via Seth Dixon
Today, a country’s marine economic area is defined by its Exclusive Economic Zone (EEZ), a 200-nautical mile-wide (370 km) strip of sea along the country’s national coast line (hi-res image). This regulation, which was installed by the ‘UN Convention on the Law of the Sea’ in 1982, grants a state special rights to exploit natural (such as oil) and marine (for instance fish) resources, including scientific research and energy production (wind-parks, for example). Questions to ponder: how does this series of buffer zones around the Earth's land masses impact politics, the environment and local economies? Where might the EEZs be more important to the success of a country/territory than other regions? Tags: economic, environment, political, resources, water, sovereignty, coastal, environment depend, territoriality, states, conflict, unit 4 political.
Via Seth Dixon
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