The people over at United Suppliers are savvy. When they caught wind of Walmart’s pledge to reduce greenhouse gas emissions by, in part, asking its top suppliers to reduce fertilizer losses from cropping systems, they jumped at the chance to differentiate themselves in the marketplace.
“For us, it was a no brainer,” says Matt Carstens, United Suppliers vice president. “If Walmart and major food companies have identified fertilizer pollution as a business risk, it makes sense for us to help them address that risk. We want to be at the forefront of helping farmers meet these demands. It’s a great business opportunity, not to mention the right thing to do.
“After all, farmers want the same thing. Reduced losses translate to increased profits and greater sustainability.”
The U.S. Department of Agriculture just published an important roadmap for America’s farmers and ranchers to measure their greenhouse gas emissions and evaluate opportunities for reducing them.
This September, a new crop will be made available to rice producers: carbon offsets.
Fertilizer use is key to increasing the productivity necessary for farms to feed rising populations. However, not using the right amount in the right place at the right time is one of the biggest threats to a stable climate. Nitrogen fertilizer not used by crops emits nitrous oxide, a heat-trapping gas 300 times more powerful than carbon dioxide. It also contaminates water supplies, causes algae blooms downstream and erodes soil health.
There’s a growing excitement around spreading compost on rangelands to help fight climate change. Over the past four years we have learned that grazed rangelands are really good at pulling carbon out of the air and sequestering it in the soil below. And if you add compost just one time, you can capture carbon dioxide from the atmosphere for more than seven years. Plus, you’ll increase both the quality of the grasses and the ability of the soils to hold water. If we scaled this to just 5 % of California’s rangelands, we could capture approximately 28 million metric tons of carbon dioxide per year, which is about the same as the annual emissions from all the homes in California.