One of the characteristics of a healthy environment is properly waste managed. Densely populated are areas where waste management needs to be improved. Plastic bottle is one type of waste that is widely available in densely populated areas. This waste, is difficult to decompose in the environment, and has not been managed optimally. The use of plastic bottle needs to be reduce the problem of waste, among others, it can be used as a vertical garden media. The methods are discourse, discussions, demonstrations, and practice how to create the plastic bottles make to vertical garden media. The participants are non-productive people, they are housewives. An important result of the activity is that the participants have the understand, skills and ability to make a vertical garden independently. Plastic bottle waste becomes useful, no longer becomes garbage. Plastic bottles are a growing media for vegetable and medicinal plants, that can beautify and green the environment in densely populated areas. It is hoped that participants will develop their potential in managing the environment starting from home, and sharing skills with the surrounding community.

BACKGROUND: The condition of solid waste in Medan City is very worrying. 37.3% of waste in Indonesia comes from household activities. The residents of Medan city produce 5,616 m3/day or 2,000 tons/day of waste, the increasing of waste reaches 2%-4% annually and was not transferred to landfill. This condition created problems for the environment both in terms of esthetics, as well as public health problems. The government has issued regulations to limit household waste and reduce and recycle household waste. Community participation is very much needed in the waste problem. AIM: The research aim was to analyze reduced activity across the generations. METHODS: This research was an descriptive survey and used cross-sectional design to measure reuse actions. The data were collected from three generations X, Y, and Z, it was 600 respondents as sample. This study was located in Medan City with 15 sub-districts. The techniques of data collection were using cluster sampling. The techniques of data collection was using cluster sampling. The questiontionare used in this study consist of waste management knowledge and reduce action questions. The type of data is numeric and data analyzed by ANOVA test. RESULTS: The study shown characteristics of the sample by sex; 30.5% male, 69.5% female. The level of education in this study was 18.2% primary education, 71.5% secondary education, and 10.3% higher education. Meanwhile the characteristics by age was 26.8% Gen X, 32.4% Gen Y and 40.8% Gen Z. Amount 42.8% of the sample had taken the reduced action. Generation Z has the most dominant percentage (41%), followed by Generation Y (32.3%) and Generation X (26.8%). The result of analyze reduce action in across generations using ANOVA Test shown p = 0.001. CONCLUSIONS: The reduced action was dominated by Generation Z (42.8%). The most frequent reduce action was the used of towels and old bed linen which are cut into small pieces to be used as rags and the lest was preferred to buy second-hand clothes instead of buying new clothes. There were differences in reduced actions between generations. Each generation is expected to have awareness and cooperation in reducing actions, especially Generation Z, which is an agent of change in reducing the volume of waste. The understanding of each generation toward waste management needs to be improved through health promotion.

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Background: According to the "waste hierarchy" (reduce, reuse, recycle), the most effective means of reducing waste is to prevent waste in the first place (e.g., avoiding products with excessive packaging; consuming fewer products), followed by reusing or finding new uses for items, while recycling is the least effective strategy for reducing waste. While public awareness of waste-related problems is growing and recycling rates are increasing in many countries, there has been less progress in reduce and reuse behaviors. The purpose of this study was to investigate housewives characteristics on reduce, reuse, recycle (3R) behaviors of domestic waste management. Subjects and Methods: This was a cross-sectional study located in 15 sub-districts in Medan, North Sumatera, Indonesia. A sample of 277 housewives was selected by purposive sampling. The dependent variable was reduce, reuse, and recyle behavior. The independent variables were knowledge and education. The data were collected by questionnaire and analyzed by Chi square test. Results: As many as 44.4% of housewives had a good understanding of 3R domestic waste management, but only 13.3% of them housewives applied it well. Poor knowledge (OR= 0.54; 95% CI= 0.29 to 0.99; p= 0.063) and low education (OR= 0.55; 95% CI= 0.18 to 1.64; p=0.39) reduced 3R behavior of domestic waste management in housewives. Conclusion: Poor knowledge and low education reduce 3R behavior of domestic waste management in housewives.