Waste and wastes are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use.

The term is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.


United Nations Environment Program

According to the Basel Convention,

United Nations Statistics Division, Glossary of Environment Statistics

European Union

Under the Waste Framework Directive, the European Union defines waste as "an object the holder discards, intends to discard or is required to discard."


There are many waste types defined by modern systems of waste management, notably including:

Latest News for: Salem waste


Washtenaw County landfill will turn gas from decaying waste into renewable energy

Michigan Live 01 Jun 2023
The new plant at the Arbor Hills Landfill in Salem Township will treat gas generated by decaying waste, processing it into pipeline quality natural gas, according to regulators with the Michigan Department of Environment, Great Lakes and Energy ......

Jacksonville City Council votes on new leaders. Here's what you need to know

The Florida Times Union 26 May 2023
Ron Salem and Randy White will serve in the top two City Council positions for the upcoming year ... Salem, the At-Large Group 2 council member and current vice president, said he knew he wanted to serve as the body’s president during a mayoral transition when he was first elected to City Council four years ago ... Salem elected as Vice President....

As I See It: City of Lebanon: Resist the narcissistic enablement of homeless self-destruction

Corvallis Gazette-Times 24 May 2023
City of Lebanon. Resist the narcissistic enablement of homeless self-destruction. The city of Lebanon proposed a designated camping or sleeping area for homeless individuals ... As a result, homeless camps in Portland, Salem, Eugene and other large West Coast cities are full of filth, garbage, human waste, stolen property and drug paraphernalia ... .......

Arkansas high school state softball tournament roundup: Weather takes center stage in round one

The Capital Journal 12 May 2023
Atkins 4, Salem 1. Atkins wasted no time in getting ahead, putting three of their four runs up in the first inning before adding another in the third then relying on good defense from there. Salem notched eight hits, but were not able to get runs across the plate other than one in the fifth that prevented a shutout....

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FILE - Zimbabwean President Emmerson Mnangagwa speaks after receiving 18 Russian built Ansan medical, air and rescue helicopters from the Russian government at the Robert International airport in Harare, Thursday, May, 18, 2023.
AP / Tsvangirayi Mukwazhi, File

Zimbabwe outlaws criticism of government ahead of elections

Deutsche Welle | 01 Jun 2023