Waste
produced in the wild is reintegrated through natural recycling processes,
such as dry leaves in a forest decomposing into soil. Outside of
the wild these wastes may become problematic, such as dry leaves
in an urban environment. The highest volume of waste, outside of
nature, comes from human industrial activity: mining, industrial
manufacturing, consumer use, and so on1. Almost all manufactured
products are destined to become waste at some point in time, with
a volume of waste production roughly similar to the volume of resource
consumption.

Post-consumer
waste is the waste produced by the end-user (the rubbish one puts
outside in the rubbish bin). This is the waste people usually think
of. But though the most visible, this is very small compared to
the waste created in the process of mining and production.
Waste management
is the collection, transport, processing or disposal of waste materials,
usually ones produced by human activity, in an effort to reduce
their effect on human health or local amenity. A subfocus in recent
decades has been to reduce waste materials' effect on the environment
and to recover resources from them.
Waste management
can involve solid, liquid or gaseous wastes, with different methods
and fields of expertise for each.
Waste management
practices differ for developed and developing nations, for urban
and rural areas, and for residential, industrial, and commercial
producers. Waste management for non-hazardous residential and institutional
waste in metropolitan areas is usually the responsibility of local
government authorities, while management for non-hazardous commercial
and industrial waste is usually the responsibility of the generator.
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