Canadian Study Shows Biobased Fertilizers Reduce Greenhouse Gas Production

A study led by the University of Waterloo showed that biobased fertilizers like compost produced fewer greenhouse gases than conventional nitrogen fertilizer. In temperate climates with repeated freeze-thaw events, fertilizers made from biobased residues, like food waste, biosolids from sewage sludges, and digestate from plant materials, resulted in less greenhouse gas production. “The premise of our study is that biobased residues, which are generated as the natural by-product of our lives and economy, have the potential to reduce global warming thanks to our highly variable spring freeze-thaw cycle—in Canada and across the temperate world,” explained the study’s lead author. According to a University of Waterloo press release, this study offers proof that climate change mitigation can be achieved through carbon sequestration and soil improvement, with an added bonus of job creation.