Slow Food supports the principles behind organic agriculture, such as promoting methods that have a low impact on the environment and reducing the use of pesticides. Yet Slow Food argues that organic agriculture, when practiced extensively, is similar to conventional monoculture cropping, hence that organic certification alone should not be considered a sure sign that a product is grown sustainably. Though most of the Slow Food Ark of Taste products practice organic techniques, very few are certified on account of the high costs of certification. To join the Ark of Taste, products must be consistent with the concepts of agricultural sustainability, while Slow Food works to ensure that they are ‘good, clean and fair’. In the next few years, the Foundation for Biodiversity aims to promote (and finance, where possible) the certification of Ark products in cases in which this would broaden markets or increase earnings.