Dazzling skyscrapers, kung-fu movies, and live seafood restaurants are what people think of when they contemplate small and densely populated Hong Kong. So, it is a shame that we rarely talk about Hong Kong’s “wilder” side—such as the approximately 40 percent of our land area that is designated as country parks, or the more than 200 offshore islands that include sites of the Hong Kong UNESCO Global Geopark.  

“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.

China is Brazil’s main trading partner and accounts for over a quarter of all Brazilian exports. Yet two of the largest products in this trading relationship—beef and soybeans—are also crops that drive deforestation in the Amazon. Brazil’s deforestation rates declined substantially between 2004 and 2012, but forest clearage needed to raise cattle reversed the trend: The Amazon lost 10,476 square kilometers of rainforest in 2021, the highest total in the decade.  

In recent years, a new narrative has appeared on Chinese social media: that a warmer and wetter climate in Northwest China will herald a return to the “golden age” of the Tang dynasty (618–907 AD). 

Climate change will bring benefits, so the story goes, as historically China has flourished during warmer and wetter periods – conditions becoming common once more in the Northwest, a region extending from the province of Shaanxi to Xinjiang in the far west.

Soil degradation affects one-third of the Earth’s surface, triggering dust storms, floods, and landslides. It is also a global threat to our food supply, and diminishes the soil’s ability to sequester carbon to mitigate climate change. China has only 0.21 hectares of agricultural land per person, which is well below the global average. Worse yet, over 40 percent of that land is already degraded.  

When Kevin Chen began his agricultural research 20 years ago, most dairy farms in China were small and family-owned. People of his generation did not grow up with milk deliveries or ice cream. Today, however, these farms have been replaced by massive agri-businesses raising tens of thousands of dairy cows, and dairy is a regular part of many people’s diets in China, thanks to rising incomes and years of governmental promotion of cheese, yogurt, and milk. 

Go to the Arkansas Rice Festival in Wiener, Arkansas and you will discover how delicious – and diversely flavored – this cereal grain can be. Savory, sweet, or even spicy: Each dish at the festival’s annual rice recipe contest shows the many ways to prepare this international food staple.

Why look to Arkansas for rice? The state produces 4 million tons of it every year, which is nearly half the rice grown in the United States.  But that U.S. annual total is dwarfed by the amount produced by China, which at 207 million tons is the world’s largest rice producer.  It’s also natural that the world looks to China for rice; genomic mapping has suggested that cultivated rice was first grown in the Pearl River valley in southern China.

China’s high-speed railway (HSR) is the most recent poster child for the country’s rapid development, with more HSR tracks than the rest of the world combined. Since 2004, the Chinese government has invested more than 10 trillion RMB to build a 40,000-kilometer (km) network of trains that zip between stations at speeds reaching 350 km/hr (or 220 miles per hour). Not to be outdone, by 2035 the government aims to expand this train network by 75 percent to help the country reach its transport connectivity and low-carbon transportation goals.