Sustainability is expressed as meeting present environmental, social, and economic needs without compromising these factors for future generations. A practice cannot be said to be 'sustainable for X years/generations.' The use of any span of time disqualifies the activity. Sustainability is for perpetuity.

Sustainability also means greater efficiency in resource use, ultimately giving benefits to economic growth and overcoming poverty, as well as health and quality of life.

Sustainable design and sustainable development are critical factors to sustainable living. Sustainable design encompasses the development of appropriate technology, which is a staple of sustainable living practices. Sustainable development in turn is the use of these technologies in infrastructure. Sustainable architecture (see Green building) and agriculture are the most common examples of this practice.

Sustainable tools to meet fundamental human needs.W

Sustainable development requires to be designed and implemented. In this respect, it also has a psychological dimension. It requires human abilities and skills. If humanity did not exist, there would be no need for sustainable development. A society is therefore required in which these skills are cultivated and knowledge about them is passed on. It is crucial how we experience and shape our relationship to the social, ecological and economic system, i.e. to the world.

People need sufficient food and security. This is nothing new and is the starting point of the United Nations Sustainable Development Goals. With the motivation theory of Abraham Maslow it can be explained that people are only then able to devote themselves to higher goals if they do not starve and fear for their safety. It seems like a dilemma that the disruption of the ecological balance contributes to starvation, so that those affected find it difficult to engage for this balance.

But humanity is complex and the ecosystem is even more so. Unfortunately, people have only a very limited ability to handle complex systems successfully. The philosopher Jean Jacques Roussou already drew the picture of humanity alienated from nature. Together with abstract thinking, humans have acquired the ability to form a society that can exist at least in the short term, although it seriously endangers or even destroys the basis for life itself.

According to self-determination theory, basic human psychological needs can be reduced to the experience of social relatedness, autonomy, and competence. Giving sustainability priority in meeting these basic needs appears to be a major challenge that we must address.

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Project articles: AEF greywater · Aleiha's parabolic solar cooker · Argentina photovoltaic · Asthma inhaler spacers · Biomass gasification · Blue ox earthen oven · Briceland PV · CCAT natural paint project · CCAT pedal powered innovations · CCAT Wash n Flush · CCAT's Vermicomposting Bin · Chicken Tractor · Corn Cob Charcoal Crusher · Decreasing turbidity to optimize solar water disinfection · Ecological dry toilets at Pedregal · Ersson rainwater harvest and purification · Ethanol from organic sugar beets versus refined cane sugar · FBP Nutsy · Fixable Infant Incubator · Greywater Ecuador La lagrima purificadora · Hexayurt project · Home biogas system · Hydroponic Vertical Garden at Sembradores Urbanos · Kiva's straw bale greenhouse · Micro filter dams at Pedregal · New Dawn composting toilet · Occidental greywater · Open source 3-D printing of OSAT · Parabolic basket and tin can solar cooker · Photovoltaic vaccine refrigeration at Centro De Salud · Rainwater catchment at Isla Urbana · Solar Charged Lawnmower · Sun Frost energy efficient shower · Terraces and ditches at Petegral · UABJO Demonstration Wetland Wastewater Treatment, Reclamation, and Outreach · WaterPod Rocket Stove · Wild Chick Farm

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