Well I google'd 'ban' and heres what was the first link.
Basel Action Network -

BAN is the world's only organization focused on confronting the global environmental injustice and economic inefficiency of toxic trade (toxic wastes, products and technologies) and its devastating impacts. Working at the nexus of human rights and environment, we confront the issues of environmental justice at a macro level, preventing disproportionate and unsustainable dumping of the world's toxic waste and pollution on our global village's poorest residents. At the same time we actively promote the sustainable and just solutions to our consumption and waste crises -- banning waste trade, while promoting green, toxic free and democratic design of consumer products.

BAN is a 501(c)3 charitable organization of the United States, based in Seattle, Washington

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So when you BAN someone you are helping the environment! Get banning, banners!