As an agricultural engineering professor, I was excited to visit and tour the farm village Houbali, in southwestern Shandong Province. I found myself standing among newly constructed high-rise buildings, a vastly different community than I had expected to encounter. A bicycle repair shop was setting up alongside other bustling businesses in the first-floor storefronts. Farm families occupied apartments in the upper floors and a beautifully landscaped park and playground were a short walk away. This neighborhood looked like a transplant from Beijing, but these modern buildings were a newly developed farm village surrounded by agricultural fields. The new buildings brought together the residents of four old, nearly empty or “hollow” villages.

With rapidly aging populations and rising levels of female employment, the United States and other wealthy nations are facing unprecedented demands for non-familial care. These nations vary in their ability to address such demands. Those with more robust welfare states, including publicly supported, high-quality child care and elder care services and facilities, are generally able to meet growing needs for care, while those with weaker welfare states experience severe “care deficits,” leaving families with few alternatives. Increasingly, in the United States and elsewhere in the developed world, families are turning to migrants—usually women—to solve their care dilemmas.

In “Africa’s smallest war,” both Kenya and Uganda lay claim to Migingo Island, a tiny island in the waters of Lake Victoria. While the claims are over the island, the conflict is about something else entirely: Lates niloticus, also known as Nile perch, a tasty white fish that swims in the waters surrounding the island. The fish forms the backbone of the Lake Victoria economy but is increasingly hard to come by along the lakeshore. Catches are in decline, incomes are dropping, and the Ugandan government is taking increasingly harsh, militarized steps to help revive the fishery.

In September 2018, the Jinghu District People’s Court in Wuhu, Anhui Province sentenced 12 people from the Pol Shin Fastener Company between four months and six years in prison for committing serious interprovincial environmental crimes in Jiangsu and Anhui in 2016 and 2017. The court also fined the automobile hardware manufacturer 10 million yuan ($1.48 million). The crime? Dispatching ships and trucks to illegally dump 2500+ metric tons of highly acidic pickling sludge from steel production. Sludge—semi-solid waste emissions from industries and municipal water treatment plants—is yet another tough water and solid waste pollution challenge China faces.

In 2018, California experienced its most destructive wildfires in history. Satellite imagery shared by NASA scientists helped firefighters track fires and map damage by comparing satellite images documenting changes to the Earth’s surface. These types of images existed for decades but were classified for military purposes until the government program MEDEA identified their potential benefit and advocated for public access in the 1990s. According to former National Oceanic and Atmospheric Association (NOAA) Chief Scientist and MEDEA member Richard Spinrad, “the systems that might be used for early detection of a missile launch may work equally well for detection of wildfires.”

In the Mekong region, there is a general push to strengthen water data management and ultimately make evidence-based infrastructure development and water resources management decisions. The efforts of the region’s governments and development partners will ideally help mitigate the cumulative impacts of infrastructure development on water resources; save lives, livelihoods, and property from potentially devastating floods and droughts; and help natural resources be used sustainably. The challenge will involve navigating potential pitfalls related to technical know-how and harmonization of standards as they develop effective water data sharing platforms.

On January 25, 2019, an iron ore mining dam collapsed in Brumadinho, Brazil. The accident was probably the worst mining dam incident in the last three decades, according to the UN. So far, 203 people have been found dead and 105 are still missing, buried underneath the wave of almost 13 million cubic meters of mining waste. At least 305 kilometers of the Paraopeba river are now covered in toxic mud. Vale SA, the company that built the dam, is the world’s largest iron ore producer.