House hunting apps giving agents a run for their money

In order to encourage people to properly dispose of their waste, New Delhi Municipal Council (NDMC) has installed smart vending machines for recyclable waste at Connaught Place and India Gate. In return for making the sustainable waste choice, users receive monetary rewards via e-wallet.

To address the food insecurity problem among its low-income students, Columbia University launched Swipes, a meal sharing app in which students with a surplus of “meal swipes” could donate them to students in need. But when that app struggled to function and roll out properly, Columbia looked downtown to New York University, where student Jon Chin launched a similarly purposed but more effectively designed app, Share Meals. So far, the app has enabled over a thousand meal donations, and is hoping to work with Columbia to share its code and expand its donor services.

In Jackson, Mississippi, a series of community-led cooperatives are creating opportunities for affordable home ownership. This is part of a trend across the country to create community land trusts. They are financed through donations, other community businesses, or commissions. Though each land trust faces hurdles, they are collectively allowing more access to wealth and ownership in historically low-income neighborhoods.

Readers on the BBC website can now find out more about select stories through “Appy Helper,” a module that provides background about an ongoing, complex story. The module works through both a chat-style interface that readers navigate via prompts or a more linear timeline display.

Redeveloping and repurposing unused real estate provides a path toward economic revitalization. With a combination of public and private grants, the nonprofit group, International Sonoran Desert Alliance (ISDA), has purchased and redeveloped real estate in the town of Ajo, Arizona. The renovated town plaza and Curley School complex contain retail spaces, artist studios, and even house community gardens of the Ajo Center for Sustainable Agriculture.

Crime-tracking mobile apps give millions of Brazilians crowdsourced data on urban violence, alerting people to dangerous places and filling gaps in government data on shootings, robberies, and other risks. But apps such as Fogo Cruzado (“Crossfire”) and Onde Tem Tiroteio (“Where There's a Shooting”) offer statistically crude glimpses of crime, distorted by media and racial biases that one expert blames for myths about the risks people actually face.

An initiative on the Moscow metro system has posters on the train featuring cats and dogs that are looking for a home. Known as the “Tails and Paws” train, these animals come from 13 animal shelters in the city and riders can use their phone to scan the poster to learn more about the animals up for adoption. “It’s about forming a new culture of responsible attitude to animals,” says one of the workers at a shelter.

Mobile home owners in Colorado are beginning to own their own communities due in part to legislation that is making it easier to do so. Resident-owned communities preserve the affordable housing stock, which manufactured home communities make up a large percentage of.

As building developers in Kenya design new structures that are more environmentally friendly and sustainable, they can look to the Garden City Mall in Nairobi as a successful example. This mixed-use development with shopping, residential, and office spaces uses solar energy, which helps cut energy costs by over 30 million shillings each year. The mall also was the first in the region to receive an international green building certification.

Two insurance companies, Discovery and Dialdirect, implemented a smartphone app for drivers to report potholes in their city. The companies then fill the potholes and brand them with their logos.