Opinion: GHG debate needs debit-credit balance

May 17, 2023

The home plate in baseball is 17 inches wide.

I listened to a presentation by the University of Saskatchewan agricultural economist Richard Gray at the end of March. In his submission, he suggested there was an error in greenhouse gas emission accounting. Kevin Hursh mentioned this in his column on page 11 of the April 6 issue.

Gray hypothesized that the accounting does not account for the carbon dioxide withdrawn from the atmosphere, converted to energy, stored in a kernel of grain, and exported to a user. The farm does not get credit for that exported carbon.

Industry champions support his hypothesis. I hear words like “rewarded,” and that past practices should be in the reward mix and the United Nations’ Intergovernmental Panel on Climate Change coefficients are wrong.

But the IPCC protocols for reporting emissions do address this energy transport. The accounting for respiratory emissions is on a worldwide scale. Their protocol is slightly less than a one-to-one debit and credit.

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Video: Dicamba Returns for Georgia Farmers: What the New EPA Ruling Means for Cotton Growers

After being unavailable in 2024 due to registration issues, dicamba products are returning for Georgia farmers this growing season — but under strict new conditions.

In this report from Tifton, Extension Weed Specialist Stanley Culpepper explains the updated EPA ruling, including new application limits, mandatory training requirements, and the need for a restricted use pesticide license. Among the key changes: a cap of two ½-pound applications per year and the required use of an approved volatility reduction agent with every application.

For Georgia cotton producers, the ruling is significant. According to Taylor Sills with the Georgia Cotton Commission, the vast majority of cotton planted in the state carries the dicamba-tolerant trait — meaning farmers had been paying for technology they couldn’t use.

While environmental groups have expressed concerns over spray drift, Georgia growers have reduced off-target pesticide movement by more than 91% over the past decade. Still, this two-year registration period will come with increased scrutiny, making stewardship and compliance more important than ever.