From Wikipedia: Freeganism is an anti-consumerist lifestyle whereby people employ alternative living strategies based on "limited participation in the conventional economy and minimal consumption of resources". Freegans "embrace community, generosity, social concern, freedom, cooperation, and sharing in opposition to a society based on materialism, moral apathy, competition, conformity, and greed." The lifestyle involves salvaging discarded, unspoiled food from supermarket dumpsters, known as dumpster diving. Freegans salvage the food for political reasons, rather than out of need. The word "freegan" is a portmanteau of "free" and "vegan". Freeganism started in the mid 1990s, out of the antiglobalization and environmentalist movements. The movement also has elements of Diggers, an anarchist street theater group based in Haight-Ashbury in San Francisco in the 1960s, that gave away rescued food. My opinion is that since so much food is thrown away by supermarkets everywhere, I can see no reason why people shouldn't help themselves to it.

I suppose they choose this kind lifestyle due to following reasons: 1)the development of human-being societ harmed the environment ，even destroy it. They worried about the future of the earth 2)live a stressed life to make money and consume, make us exhausted 3)human squander the natural resources and resources product at will for the pursuit of high-class life all because we are prestige......

i think some of the idea is good but some is not so good