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:

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The Salem News 01 Oct 2022
Secrets Revealed, the Mysteries Behind the Research and Writing of Dracula,” taking place at Cinema Salem on Tuesday, Oct ... Salem Education Foundation Grants ... Waste drop-off. Salem residents with proof of residency or property ownership may drop off their yard waste at the Salem Transfer Station on Swampscott Road on Saturdays from 7 a.m....

Iranians are risking it all to protest. Their families say some of them aren’t coming home

Egypt Independent 28 Sep 2022
The last time Farnaz heard her brother’s voice was over the phone, on an unknown number. “He called me and said only one sentence ... Anadolu Agency/Getty Images ... “No one deserves to die just because they’re showing some hair or saying what they think it’s a waste of life,” Aili told CNN. CNN’s Mostafa Salem and Celine Alkhaldi contributed reporting. .......

Mission to Zero: Abu Dhabi highlights campaign to reduce single-use plastic at Adihex

Khaleejtimes 26 Sep 2022
As part of EAD’s future vision for Abu Dhabi, the agency has set an ambitious long-term goal to achieve zero consumption of single-use plastics, supported by zero waste and zero carbon emissions, with zero impact on all Abu Dhabi species ... Dr Shaikha Salem Al Dhaheri, Secretary General of EAD, said....

The role of waste to energy in driving a circular economy

Khaleejtimes 14 Sep 2022
The world has seen a wide range of initiatives and collaborative efforts to minimise the impact of waste on sustainable development and use it as a resource to bring about further benefits for humanity ... Dr Salem Al Kaabi is Acting Director-General of Abu Dhabi Waste Management Center ....

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