Search results for "megacities"
showing 5 items of 5 documents
Negotiating informal housing in Metro Manila : forging communities through participation
2016
This research project examines socialized housing programs available to informal settlers in the megacity of Metro Manila, Philippines, and the socio-political and institutional relationships that enable or impede access to housing. Megacities are urban agglomerations with populations of over 10 million inhabitants and Asia and Africa contain some of the fastest growing cities in the world. The challenge of Southern governments to meet the housing needs of hundreds of thousands of urban poor is exacerbated by the influx of migrants into these economic hubs, the scarcity of land for low-income housing and the inequalities and infrastructure deficiencies in developing countries’ cities. The s…
Megacities without Global Functions.
2007
Present urban evolution is characterized by two major phenomena. On the one hand, the number of very large cities, the megacities, increases dramatically, especially in the less developed countries (LDCs). On the other hand, globalization leads to the emergence of cities coordinating complex and global economic activities, the global cities, especially in the more developed countries (MDCs). So, the two phenomena are diverging. A number of megacities do not exhibit any global function.The global performances of megacities are well correlated with their degree of economic development. But it is worth wondering why economic underdevelopment is consistent with urban growth but not with city gl…
Overview: On the transport and transformation of pollutants in the outflow of major population centres - Observational data from the EMeRGe European …
2022
Megacities and other major population centres (MPCs) worldwide are major sources of air pollution, both locally as well as downwind. The overall assessment and prediction of the impact of MPC pollution on tropospheric chemistry are challenging. The present work provides an overview of the highlights of a major new contribution to the understanding of this issue based on the data and analysis of the EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional to Global scales) international project. EMeRGe focuses on atmospheric chemistry, dynamics, and transport of local and regional pollution originating in MPCs. Airborne measurements, taking advantage of …
Aviation Contrail Cirrus and Radiative Forcing Over Europe During 6 Months of COVID‐19
2021
Abstract The COVID‐19 pandemic led to a 72% reduction of air traffic over Europe in March–August 2020 compared to 2019. Modeled contrail cover declined similarly, and computed mean instantaneous radiative contrail forcing dropped regionally by up to 0.7 W m−2. Here, model predictions of cirrus optical thickness and the top‐of‐atmosphere outgoing longwave and reflected shortwave irradiances are tested by comparison to Meteosat‐SEVIRI‐derived data. The agreement between observations and modeled data is slightly better when modeled contrail cirrus contributions are included. The spatial distributions and diurnal cycles of the differences in these data between 2019 and 2020 are partially caused…
Living the urban challenge : sustainable development and social sustainability in two southern megacities
2007
Kehitysmaiden nopea kaupungistuminen ja miljoonakaupunkien voimakas kasvu luovat haasteita kestävään kehitykseen tähtäävälle suunnittelulle. Kansainvälisissä kehitysohjelmissa on pyritty turvaamaan suurkaupunkien taloudelliset ja ympäristölliset tavoitteet. Kestävän kehityksen sosiaalinen ulottuvuus on usein rajattu kaupunkien tarjoamiin sosiaalipalveluihin.- Ympäristön säilyttäminen tuleville sukupolville ei onnistu vain talouteen, ympäristöön ja palveluihin kohdistuvilla teknisillä toimilla. Tämä johtuu etelän suurkaupungeille tyypillisestä räikeästä sosiaalisesta eriarvoisuudesta. Suurkaupunkien suunnittelussa tulisi analysoida sellaisia sosiaalisia haasteita, jotka heikentävät kaupunkie…