The capitalist city summarizes, in the heterogeneity of its localities, the processes of social inequalities and issues like access to built environments, the economical situation of its population, as well as the effects of the ongoing public policies. The city of Sao Paulo, a metropolis of global characteristics, has developed serious social debts throughout its history.
Transformation or modification of vegetation distribution and structure in arid riparian ecosystems can lead to the loss of ecological function. Mexico has 101,500,000 ha of arid lands, however there is a general lack of information regarding how arid riparian ecosystems are being modified.
The Millennium Ecosystem Assessment projects that the intensification of freshwater scarcity in combination with continuous water extraction from delicate dryland ecosystems is likely to exacerbate desertification, thus leading to a downward spiral of ecological deterioration and a precarious depreciation of livelihoods in many developing regions.
Abstract:
"The Greater Himalayas hold the largest mass of ice outside polar regions and are the source of
the 10 largest rivers in Asia. Rapid reduction in the volume of Himalayan glaciers due to climate change is
occurring. The cascading effects of rising temperatures and loss of ice and snow in the region are affecting, for
La conservación de las áreas naturales protegidas (ANP1) y su posicionamiento como herramientas para la conservación, se ha visto reflejado en las normas que establecen como obligatoria la Opinión Técnica Previa Vinculante (OTPV) a un proyecto que se superponga a dichas áreas, sin su obtención el proyecto propuesto no es viable. Este procedimiento es conocido como compatibilidad.
En el mundo existen en la actualidad aproximadamente 850 millones de personas que no cuentan con acceso al agua potable, y 2500 millones sin servicios básicos de desagüe y alcantarillado. Dichas carencias generan altas tasas de mortalidad, así como un desmedro en la calidad de vida y dignidad de las personas, sobre todo de las pertenecientes a los sectores de más bajos recursos.
This Working Paper summarizes research conducted as part of the AgWater Solutions Project in Burkina Faso between 2009 and 2012. Researchers from the AgWater Solutions Project examined the potential for small reservoirs, inland valley cultivation and the use of motorized pumps.
We analyzed the following characteristics of water self-depuration capacity along a polluted river (Suquía River) in Argentina: a) abundance of microbial metabolic groups, b) cover and type of vegetation, and c) type and concentration of soil and sediment humic substances.
Soil erosion by water has accelerated over recent decades due to non-sustainable land use practices resulting in substantial land degradation processes.
