China’s power sector makes up the lion’s share of the country’s greenhouse gas emissions, but rising methane emissions from rice farming and livestock, nitrous oxide emissions from fertilizers, and CO2 from food transport could all hinder China’s progress toward its 2060 carbon neutrality goal. Chinese policymakers could rein in agri-food emissions by modifying existing climate plans and policies. Climate-smart agriculture is not only a mitigation strategy, but also an adaptation strategy to intensifying extreme weather events like heatwaves and typhoons.

Extreme heat from climate change threatens food security in the world’s two food-producing superpowers. Climate adaptation for agriculture is a must. The US and China have much to share on climate-smart farming practices to help us both weather the storms and droughts. 2023 brought scorching heat waves that baked crops and livestock in China and the United States. In China, farm animals and fish died from extreme heat in June with some provinces enduring weeks of temperatures above 40°C (104°F). In one farm, a heatwave-triggered power outage resulted in hundreds of pigs suffocating to death after shed fans stopped working.

Faced with the grim situation of normalized extreme heat and drought, it is imperative for China to improve agricultural resilience to climate change. Rural communities, often led by women, are using seed banks and traditional techniques to boost local crop diversity and food security in order to adapt to climate change.

The excited bleating of sheep crescendos as farmer Sarah Keiser approaches. “Hi babies,” she says as she steps over a deactivated electric fence and greets the eager flock. It is late July, it hasn’t rained for two months, and the hills around the town of Penngrove, in northern California, have turned a dull brown.   

Picture this: A parade of yaks carrying insulated boxes containing meter-long ice core samples from Tibetan glaciers. “Yaks are like cats,” elite glacier scientist Lonnie Thompson explained in a 2023 Wilson Center webinar. They like to wander off — and it takes experienced Tibetan yak herders to keep them moving in the same direction. 

Yet these yak-schlepped ice cores are essential to climate science, added Ellen Mosely Thompson. They store thousands of years of atmospheric dust and gasses in distinct layers and serve as a record of our changing climate.

As a potent greenhouse gas, methane puts food production in jeopardy though its impacts on planetary warming, reduction of crop yields via tropospheric ozone, and drops in livestock productivity. Cattle, sheep, and goats emit methane as a natural part of their digestive process as ruminants (technically known as “enteric fermentation”) as they turn the fibrous plants of their diet into milk and meat.

When cows eat, they burp. And what they exhale generates almost a third of global methane emissions – a greenhouse gas 80 times more potent in warming the climate than CO2. So tracking this short-lived climate gas is crucial.  

Six miles from Bakersfield, California, at the Bear 5 cow feedlot, this work is starting to happen. High-resolution satellites are being used for the first time at the feedlot to track methane emissions from cow burps. Measuring cow belches from space is bringing critical attention to the brewing climate issues from cows. After all, the methane produced by these gassy animals in one year at Bear 5 cow feedlot alone could power more than 15,000 homes in California.  

“Save your kitchen scraps to feed the hens,” urged a poster for the victory gardens created on the home front in the Second World War. Feeding food scraps to backyard chickens and pigs turned this waste into a delicious source of human food. Pigs were especially prized in this effort as they would eat what most other animals considered inedible.