The first U.S. city to host a docked bike-share system, Washington, D.C., is now home to a rapidly growing influx of dockless bikes, with five companies vying for the market. The docked system still accounts for 87 percent of the shared bikes in the United States, but the number of dockless bikes—which can be located by riders using an app and then left anywhere—is growing rapidly. The data from these location-enabled bikes provide a unique opportunity to measure the point-to-point transportation needs of millions of people in some of the world’s densest cities.

In 2016, the Environmental Protection Agency charged its federal advisory committee with exploring how citizen science and crowdsourcing should be integrated into the agency’s mission. The resulting report eloquently describes how if the environment is to be protected then it’s the duty of all – the government, institutions, and citizens – to work together to achieve this.

Our nine-part “Choke Point: Tamil Nadu” series with Circle of Blue has been a must-read on the conflicting demands for water, food, and energy in the South Indian state. In May’s most popular post, S. Gopikrishna Warrier introduces us to Chennai’s tech-savvy social entrepreneurs, who are providing the city’s residents with real-time information on the risk of flooding. (The ninth and final post in the series was published yesterday; catch up on all of them at “Choke Point: Tamil Nadu”).

In 2000, the United Nations established the Millennium Development Goals (MDGs) with the goal of creating a global partnership for development. The formation of the MDGs created a foundation for collaboration and encouraged cross-sector partnerships to reduce poverty but also promote issues like environmental sustainability and gender equality. To carry on momentum from the MDGs, 17 Sustainable Development Goals (SDGs) were established in 2015 to further encourage partnerships between civil society organizations, the private sector, academic institutions, and more. Increased private sector engagement in development is a major goal of the SDGs – and we would argue that it is crucial to their success.

Before the 2015 floods that drowned Chennai, Pradeep John spent several years posting thorough and dutifully accurate updates and alerts on Twitter and Facebook as the Tamil Nadu Weatherman. An amateur meteorologist who developed considerable expertise in weather data and satellite imagery, John’s online followers relied on his crisp forecasts and advice.

“Made in China” products surround us, yet few consumers have anything more than a foggy idea of where in China their phones, computers, and other goods come from. Hunan Province in South Central China is not only the home of spicy food, but the world’s largest mines for non-ferrous metals used in many electronic devices. Nearly all the glass panels for Apple and Samsung smartphones are manufactured in Hunan as well. While this multibillion-dollar phone industry has been a boon for Hunan’s economy, it has also produced seriously polluted rivers and soil.

Where violent conflict displaces people and disrupts societies, maternal and child health suffers, and such instability is widespread today. According to the UN Refugee Agency, there are 65.3 million forcibly displaced people, 21.3 million refugees, and 10 million stateless people over the world. In addition, more than 65 million people who are not displaced are affected by conflict.