what is paper

14th century, in the meaning defined at sense 1a(1)
Synonyms: Adjective

• formal,
• nominal,
• titular

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Paper Pollution is refuse created in pulp and paper mills and paper that is discarded into landfills. In Canada and the United States, paper and pulp are the third largest industrial pollutants, paper making up 35 percent of municipal solid waste that goes to the landfills. Once used as a communication tool, the paper has become material for packaging, consuming 42 percent of the world’s harvested wood.
The production of paper today has been leaving a strain on the Earth. Tree removal practices like deforestation destroy animal habitats and allow for substantial erosion in areas that rely on tree roots for support. At the same time, the production of paper products releases greenhouse gasses into the atmosphere and the use of large amounts of chlorine for bleaching, releasing large quantities of dioxins.

What is “paper bidding”? Why is that before the submission deadline?
In conferences with paper bidding, reviewers get to indicate their preference for each paper (i.e. “I’m interested in reviewing this one, not interested in reviewing that one”).

References:

http://www.buschsystems.com/resource-center/knowledgeBase/glossary/what-is-paper-pollution
http://academia.stackexchange.com/questions/37850/what-is-paper-bidding
http://www.merriam-webster.com/dictionary/paper