Agriculture is a major actor in spurring global climate change. The sector is already responsible for at least 10-12 percent of global greenhouse gas (GHG) emissions, and agricultural emissions are expected to increase by more than 50 percent by 2030.
Mitigating agricultural emissions, then, could go a long way toward mitigating global climate change. The Greenhouse Gas Protocol is currently developing an Agricultural Guidance to help companies measure and reduce their agricultural emissions. We’ve just released a second draft of the Guidance for open comment period, which will run until May 31, 2013.
Key Challenges to Measuring Agricultural Emissions
Reporting agricultural emissions in GHG inventories is a decidedly complex endeavor, which can hinder reduction efforts. For example, agricultural emissions are strongly affected by weather and are therefore often calculated with a large amount of uncertainty. This ambiguity makes it challenging to set and track progress toward reduction targets. The carbon stored in biomass and soils can often be emitted into the atmosphere, making it imperative that companies do not over- or under-count the impact of farming practices on stored carbon. And companies vary widely in how they control different parts of agricultural supply chains—such as commodity production, processing, and retail —so it’s difficult to maintain consistency in how inventories are reported.