Katy

Katy may refer to:

In geography

Poland

Serbia

United States

Katyn

Katyn may refer to:

See also

Katyń (film)

Katyń (Polish pronunciation: [ˈkatɨɲ]) is a 2007 Polish film about the 1940 Katyn massacre, directed by Academy Honorary Award winner Andrzej Wajda. It is based on the book Post Mortem: The Story of Katyn by Andrzej Mularczyk. It was nominated for Best Foreign Language Film for the 80th Academy Awards.

Background

The Katyn massacre, also known as the zbrodnia katyńska ('Katyń crime'), was a mass execution of Polish POW officers and citizens ordered by the Soviet authorities in 1940. The most widely accepted estimate of the number of dead is about 22,000. The victims were murdered in the Katyn forest, Kalinin (Tver) and Kharkiv prisons, and elsewhere. About 8,000 were officers taken prisoner during the Soviet 1939 invasion of Poland, the rest being Poles arrested for allegedly being "intelligence agents, gendarmes, spies, saboteurs, landowners, factory owners, lawyers, priests, and officials."

During the German occupation of Poland, the Germans used the massacre for propaganda purposes against the Soviets. However, after the war, when Poland fell under Soviet influence, the truth about the event was suppressed by the Soviet authorities, who maintained an official line throughout the Eastern Bloc that the massacre was committed by the Germans. With the fall of communism in Poland in 1989, the first non-communist Polish government immediately acknowledged that the crime was committed by the Soviets. In 1990, Mikhail Gorbachev acknowledged Soviet responsibility for the Katyn massacre for the first time. In 1991, Boris Yeltsin made public the documents which had authorised the massacre.

Recycling

Recycling is the process of converting waste materials into reusable objects to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, energy usage, air pollution (from incineration) and water pollution (from landfilling) by decreasing the need for "conventional" waste disposal and lowering greenhouse gas emissions compared to plastic production. Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse and Recycle" waste hierarchy.

There are some ISO standards related to recycling such as ISO 15270:2008 for plastics waste and ISO 14001:2004 for environmental management control of recycling practice.

Recyclable materials include many kinds of glass, paper, metal, plastic, tires, textiles and electronics. The composting or other reuse of biodegradable waste—such as food or garden waste—is also considered recycling. Materials to be recycled are either brought to a collection centre or picked up from the curbside, then sorted, cleaned and reprocessed into new materials destined for manufacturing.

Nutrient cycle

A nutrient cycle (or ecological recycling) is the movement and exchange of organic and inorganic matter back into the production of living matter. The process is regulated by food web pathways that decompose matter into mineral nutrients. Nutrient cycles occur within ecosystems. Ecosystems are interconnected systems where matter and energy flows and is exchanged as organisms feed, digest, and migrate about. Minerals and nutrients accumulate in varied densities and uneven configurations across the planet. Ecosystems recycle locally, converting mineral nutrients into the production of biomass, and on a larger scale they participate in a global system of inputs and outputs where matter is exchanged and transported through a larger system of biogeochemical cycles.

Recycling (disambiguation)

Recycling may refer to:

Science