A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

× 177
using materials that would otherwise be waste to manufacture new materials. For questions specifically on [upcycling] use that tag, for questions on [reuse] use that tag.
× 133
Electric energy produced from sunlight. This could be via semiconductors, in [photovoltaics]; or through the concentration of solar heat to drive a turbine, as in concentrating solar power [solar-ther…
× 122
the sustainable use of energy, through efficiency and [renewables]. Use this tag for questions on energy in general. For questions on a specific energy type see [electricity], [heating], [light] or [s…
× 102
describes all effects (positive or negative) of the production, consumption and/or disposal of a product, service, policy, or project on the environment.
× 96
substance consumed to provide nutritional support for humans and animals. Use this tag for questions on the sustainability aspects of food in general. See also [meat],[fish],[cooking]
× 94
the process of creating compost: organic matter that has been decomposed and recycled as a fertilizer and soil amendment. For composting with worms see [vermicomposting], for anaerobic composting with…
× 94
materials which the initial user wants to dispose. For questions about [reuse] or [recycling] waste use those tags.
× 92
a dwelling-place used as a permanent or semi-permanent residence for an individual, family, household or several families in a tribe. Use this tag for questions about sustainability issues at home.
× 92
The percentage ratio of energy produced to energy supplied to a system; or a measure of minimum energy required relative to energy actually consumed; or a measure of relative energy consumed to provid…
× 84
Questions concerning the production or use of electricity in a sustainable way.
× 83
warming a space for human comfort. Use this tag for questions on space heating and central heating. For questions about heat for preparing food use the [cooking] tag. For heating water use…
× 81
any of a wide range of synthetic or semi-synthetic organic solids that are moldable. They are usually synthetic, most commonly derived from petrochemicals, but many are partially…
× 80
Questions regarding sustainable use of water, or water's impact on sustainability in general. For questions on [waste-water], [greywater], [seawater], [water-footprint] or [virtual-water] please use …
× 70
a measure of the total amount of greenhouse gas emissions produced directly and indirectly by a person, an organisation, an event or a product.
× 59
Giving materials and objects an additional life by using them again, rather than [recycling] or discarding them.
× 58
a resource that can be created or used over and over again without depleting the materials from which it is made.
× 56
the sustainability aspects of domestic or commercial gardening: the cultivation of plants and fungi, landscaping and garden design.
× 55
moving people or freight from one place to another. This includes use of cars, trucks, buses, aircraft, watercraft, as well as non-fuel-intensive transportation. For questions specifically about cars …
× 53
methods for producing electricity, including inputs (fuel, land, water, air) and byproducts (heat, waste, emissions)
× 45
any addition of harmful substances or products in the environment (air, water, soil or food). For questions specifically about [air-polution], [greenhouse-gas-emissions] or [toxic-chemicals] please u…
× 43
automobile, mainly used for transporting people For questions also about other types of vehicles or about transport in general use the [vehicle] or [transport] tags respectively.
× 43
DIY (Do-It-Yourself) and home improvements: the sustainability issues around mending and improving your home through repairs, renovation, carpentry, plumbing and other building activities that you do …
× 41
The conversion of the kinetic energy from moving air into usable electrical energy. This is almost always through three-blade horizontal-axis wind turbines, though there are variants that include two …
× 39
a measure of how much land and ocean area is required to sustain a particular consumption pattern. This is related to, but not the same as [environmental-impact]
× 39
Material, usually derived from wood and produced into thin sheets. Sustainability of using paper: possible recycling methods or ways to minimize paper waste.
× 38
a method for quantifying the impacts of a product, process, or service over its entire supply chain. Carbon, energy and water footprinting are well-known subsets of LCA.
× 37
Solar panels that convert light directly to electricity. For questions on using sunlight to to heat water use [solar-thermal]
× 36
more sustainable alternative for a particular product or activity
× 30
Questions that define the concept of sustainability by discussing its relationship with other related concepts
× 29
storage devices for electrical energy. Use this tag for questions about selecting and using the (most sustainable) various battery technologies for a particular application as well as questions about …
× 29
enclose and protect items for the purpose of distributing and/or selling them. See also [paper], [plastic]
× 28
The management of fresh and usable water resources, desalination, waste-water handling and purification.
× 28
multicellular organism of the kingdom Plantae, such as trees, bushes, herbs, ferns and mosses. For questions about growing, keeping, or using plants in a sustainable way or to improve the sustainabili…
× 28
a school of sustainable agriculture modeled on observations of how natural ecosystems work. It is founded on three principles: care of ecosystems, care of people, and closing cycles so that waste is r…