10 of 20 Good Reasons To Buy Organic 

Reduce greenhouse gas emissions by eliminating synthetic nitrogen fertilisers.
Agriculture in Australia is the second-highest contributor of greenhouse gases (17 per cent
in 2004). The Australian Greenhouse Office says that fertiliser emissions accounted for
two-thirds of all cropping emissions. Organic standards prohibit the use of nitrogen
fertilisers (Cotton Research and Development Corporation, 2007).

Source: BFA