Man has been on our planet for thousands of years and has always needed to shelter from weather.  At first, shelter was sought under trees or in caves, later in rudimentary constructions, tents, shacks, houses, castles, palaces, buildings and so many different dwellings that addressed various needs.  See entire post

We are living one of the most difficult moments in recent human history.  We have learned much in the last seven thousand five hundred years since the inception of the first signs of civilization in our society. 

Man has roamed this planet for thousands of years, but only recently has he developed the ability to socialize in communities. Communities became city-states, then kingdoms, empires and finally republics.  See entire post

Of all our afflictions, hunger is the most offensive to our collective consciousness.  We know that much could be done to prevent the images that confront us around the corner from our homes, or to eradicate the images we see from African countries where people literally starve to death. 

These situations came about because of the unwillingness of governments and societies to find a solution to this savagery that resembles the holocaust when taken into the context of a continent like Africa.  See entire post

Due to the energy crisis and the global warming problem there is a need to find new sources of energy that may minimize the serious problems that stem from this situation.

One of the ways to solve the problem of global warming is to review a large portion of the energy matrix used by man until now.  That led to the development of alternative or renewable energy sources that are derived from virtually inexhaustible natural sources, some due to their great energy potential and others due to their natural regenerative abilities. See entire post

Have you stopped to wonder if your neighborhood is sustainable?  As you answer this question you will be evaluating the place you live and thinking about important points that must weigh on your decision.

The vision of what constitutes a sustainable neighborhood is little known by most people.  Actually this concept is not well disseminated.   In researching other countries’ sites I found Canada Mortgage and Housing Corporation (CMHC-SCHL), where I learned about a very interesting proposition that determines whether a neighborhood is sustainable or not, and which virtues it must have to provide a better quality of life.  See entire post

Discussions about safety have become surreal, since the idea of safety in cities is completely utopian and unreal.  Safety has been the most damaged of all basic needs, to the extent that in some cases the minimum requirements for living in a community are absent.  See entire post

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

Overall, public transportation in Brazil has always been of low quality and, with rare exceptions, was never worthy of a positive evaluation from users.   The main reasons for this negative situation are the lack of planning and control on the part of city governments, who are responsible for implementing the systems, and the lack of a strategic vision and continuity on this issue by the federal government as it establishes public transportation policies. See entire post

The idea behind a carbon credit system was to try to compensate for the emission of greenhouse gases through a program that promotes policies that encourage countries to review their industrial processes in order to reduce atmospheric pollution and its impact on global warming. See entire post

In the last few months people have been asking me that. People who interview or talk to me about sustainability want to know if sustainable developments cost more than traditional ones.

Actually the answer is not simple, it has to be explained.  And why is that? It is simply because the calculation must take into consideration aspects beyond the manufacturing costs. See entire post