Do you want to understand what a carbon credit is? Were you aware that air pollution from Ontario's coal-fired generation plants finds its way to Sweden and beyond? Do you care which Canadian oil producer is the most environmentally damaging?

You can discover this and more in one of my favourite Canadian magazines, the oddly named but significant, Corporate Knights. With offices in Toronto, the magazine's mission is to humanize the marketplace by making it easier for people to know the environmental impact of their buying decisions and to evaluate how corporations and their leaders are responding to environmental concerns.

This month's issue is the "2005 Air Issue." The topics covered include, "Ten Ways To... Clean The Air Inside Your Home;" "Climate Change: It Sells But Who's Buying;" "The Toxic 50;" and "Hybrid Fever," a review of fuel-efficient cars (see also 0footprint.org).