the size of Texas. The scientists study the effect of the trash on the marine life, and how to solve the rising problem. Another current study is the process of changing waste into energy. As both become a rising problem the methane in landfills has the potential to be used to generate small amounts of electricity. Garbology is also what the community of Holden Village has called its communal sorting, separating, and disposal of landfill, recycling, and compostable items. Holden Village is a ministry of the Lutheran Church in the Cascade Mountains of Washington and has utilized the term for over a decade. It reflects both the community's commitment to sustainable practices and a care for creation. Holden hires a full-time "Garbologist" who leads groups of community members in the sorting of the village waste. Garbology as an approach has been practised by various fields like social sciences studies garbology how human have explored waste management and its various other uses while science uses waste management technologies. Different fields of study has explored the study of garbology and its uses. Garbology as an anthropology study has been proved very helpful in exploring the past and discovering ancient sites using the 'litters', telltale domestic items, legible newspapers made their task easier. Household garbage proved to be more helpful and it required a lot of fieldwork and physical labour. Garbology is not mathematics, one needs to dig it, feel it, sort it. to smell it. Green cities Portland, Oregon consistently rates at the top of every list of sustainability, green buildings, recycling rates, clean transportation, energy efficiency, and eco businesses. Portland is considering implementing anaerobic digesters and plasma gasification that would efficiently decompose garbage. Copenhagen, Denmark is the most efficient city in the world with garbage. 3 to 4 percent of the city's waste ends up in landfills. When compared to the 69 percent of the US's average, this is a very small percentage. Trash is largely incinerated and in the process used to generate electricity. Six out of ten Danish homes are heated this way. Investigative uses Another use of garbology is as an investigative tool of law enforcement, corporate espionage, or other types of investigations. This not only includes physical sorting of papers from a rubbish bin but also analysis of files found in a computer's recycle bin. The FBI ran "trash covers" against various organizations deemed subversive in the