Growing Returns

Selected tag(s): global carbon emissions

We can feed a growing population while shrinking fertilizer pollution. Here’s how.

Tractor applying fertilizer

Farmers must estimate how much fertilizer and other inputs their crop will need in the face of increased weather variability.

Nitrous oxide might not make the news like carbon dioxide, but it’s a powerful hidden force behind the extreme, climate-driven weather we’re experiencing. This super-pollutant is the third most significant greenhouse gas, with a warming impact almost 300 times greater than carbon dioxide. Lowering it is essential for avoiding the most dangerous climate impacts.

The newly released “Global Nitrous Oxide Assessment” confirms a sobering reality: atmospheric concentrations of the gas are rising faster than previously anticipated. The majority of nitrous oxide emissions come from synthetic fertilizer and manure. Yet nitrogen applications are also essential for producing the crops that feed a growing population.

We don’t have to choose between food security or climate stability. We can and must support farmers in achieving both priorities.

Reducing nitrous oxide emissions isn’t just possible — it’s within reach.

A combination of existing strategies could slash global nitrous oxide emissions by over 40%, but scaling these solutions requires commitment and innovation, but scaling these solutions requires commitment and innovation.

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How animal agriculture can help meet the Paris Climate Agreement goals

corn fieldThe Paris Climate Agreement included a special emphasis on food security and the threats it faces from extreme weather events. Despite only brief mentions of agriculture in the preamble to the agreement itself, a recent study from the University of Vermont reveals that global emissions reduction targets absolutely cannot be met without significant contributions from the agricultural sector.

According to this new research in Global Change Biology, agriculture needs to reduce emissions by one gigaton per year in 2030, yet current mitigation strategies can only meet 40 percent of this target, at most, and may deliver as little as 21 percent of what is needed.

The authors argue that agriculture needs to play its part, and I couldn’t agree more. We are dependent on agriculture not only to keep us fed, but also to lead the way in addressing climate change threats. Agriculture represents approximately 9 percent of total emissions in the U.S., and between 10 to 29 percent of emissions globally, though this figure is projected to increase.

Despite the fact that 119 nations included agricultural mitigation as an in-country strategy for meeting the Paris Agreement reduction targets, no country has yet reported on how to accomplish these pledges.

Ultimately, the responsibility to implement tangible on-farm changes that reduce emissions falls on billions of farmers, but there is an even greater responsibility for animal agriculture companies. Here’s why – and what these companies can do to help tackle the climate challenge. Read More »

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