Basic sanitation comprises a set of essential services for life in cities.  It is a service category that addresses a populations’ supply of drinkable water and its sewer system; some people also include garbage collection in this category.  It is essential to people’s health and to overall environmental preservation. See entire post

From what I’ve been reading in the press and hearing from people about sustainability in its most varied forms and applications, I’ve noticed that most people don’t really know what it means; perhaps it’s a new concept that only now is gaining importance in our lives. 

In these past few weeks I’ve been posting on the blog with the main intention of spreading the meaning of sustainability. I believe that in order to change the world we first have to understand the concept and then evaluate and discuss it, so that we can make people more aware of the need for change. Then we can start implementing change, even when we face enormous difficulty.   See entire post

Nowadays, more than 50% of the world’s population lives in cities.  In Brazil more than 80% of the population lives in urban areas.  It is a high index showing that the future of our planet depends on solutions that must be implemented in these cities in order to preserve our ecosystems.

Many scholars consider cities as living ecosystems since they have several species interacting among themselves and with the environment.

Urban ecology is the relationship between man and the urban environment, or with everything around him in a city, whether alive or inanimate.  It seeks to understand the natural systems within urban areas, with their effects in the quality of life of living beings. See entire post