"Writing and thinking is not economically sustainable".

How does $martville look like?

$martville is a small city that has a cool weather in summer and decent weather in winter, clean nature and fresh air, and that leads to the next point, which is the fact that $martville has a population of 8,000 person, which is a decent size to be entirely run on 100% renewable resources, having renewable energy is only a small part of being sustainable, which is another advantage in this city. The city is powered by a mix of solar, hydroelectric and wind energy.

What is sustainability and Why is it important?

The definition of Sustainability "is the capacity to endure; it is how biological systems remain diverse and productive indefinitely". But when we hear sustainability we usually think about reducing carbon emissions, renewable energy and how to keep the ecosystem on the earth in balance. But still why is it important? It is important to us human because it is the ability to save the quality of life that we live in the long term without compromising the ability of future generations to meet their own needs.

How does the urban land use look like in the city and how does help being sustainable?

How does the urban land use look like in the city and how does help being sustainable?

The land use is defined as "the total of arrangements, activities, and inputs that people undertake in a certain land cover type. In the city there are six main types of the urban land use:

1-Residential Land Use:

Is the land where people live on, most of the people lives in single family homes or in semi-detached homes. It has approximately 30 – 35 homes per hectare. Every house is powered by renewable energy, basically solar and wind energy, and the houses apply the R’s on their craps as mentioned before, and that is why houses are help being sustainable.

2- Transportation Land Use:

Land that used by people to move from one place to another. It includes: Car-parking, Sidewalks, Roads, Highways, Railroad and all other lands that people use for transportation. In the city the people use electronic cars and as mentioned before they work on electricity instead of gas, trains and subways are powered by electric energy that comes from wind and hydroelectric, but planes are the only way of transportation that still has some planes that work on gas.

3- Institutional Land Use:

It is the land that serves a. educational, health, cultural, community’s social and recreational needs. Schools, collages, hospitals, mosques, churches and governmental buildings are all examples of institutional land use. In this type of land it is easy to be powered by wind and solar, especially because a lot of these buildings do not have full schedule and do not work all the day (schools, universities, etc…).

4- Open Space Land Use:

Is any open space or land that has no buildings and available for the public. This space includes: Green spaces, public seating areas, schoolyards and much more. This type of lands does not need a lot of services except for electricity to light them in night, which reaches from the lampposts that have solar cells that turn the sunlight to electricity, and it needs some garbage cans and people to collect them. This category of lands is the most sustainable between the six different lands.

5-Industrial Land Use:

It is land that people use for industrial purposes. In the city there are many examples on light industrial uses (e.g., processing plants) , because this type of industry is usually placed close to urban areas, unlike the heavy industrial that requires large spaces of land and has more sound and air pollution, and the latter type does not exist in the city to help keeping it sustainable. To help holding on to the sustainability in the city the small factories use only renewable energy (Solar and hydroelectric energy) by charging a big batteries that turn the solar and hydroelectric energy to electricity , and they use air filters to remove solid particulates such as dust, pollen, mould and bacteria from the air.

6-Commercial Land Use:

Commercial land use is land that is kept aside by the government for commercial activities, such as theaters, shops, restaurants, cafes and so on. One of the new rules in the city is to keep the commercial lands sustainable, in the present and the future, and that what improves the biggest idea of sustainability in this city, so by using solar and wind energy these commercial lands use can have electricity to run the places. These places will have to apply the three R’s on the craps they produce.