In this episode of the Yara's Crop Nutrition Podcast, Scott and Dr. Rob Michelson discuss the Canadian government's mandate to reduce fertilizer-related greenhouse emissions by 30% by 2030. They are joined by Dr. Tom Bruulsema, the chief scientist at Plant Nutrition Canada, to delve into the evidence supporting the four R's of nutrient stewardship and their role in reducing emissions and improving nitrogen use efficiency. The conversation covers the importance of finding a balance between reducing emissions and maintaining high crop yields, the use of nitrification inhibitors to reduce nitrous oxide emissions, and the need to consider all four R's (rate, source, timing, and placement) in fertilizer management. Dr. Bruulsema highlights the economic benefits for farmers and the collaborative efforts between the government and industry to support the adoption of sustainable practices. The episode concludes with a call for continued collaboration and innovation to achieve lasting gains in nutrient stewardship. Tune in to gain insights into Canada's efforts to achieve emission reduction targets while maximizing productivity and sustainability in agriculture.