1. Sameer Kalwani: Safe drinking water

    05:26

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    Health in India is greatly compromised by dirty water. Sarvajal, founded by Sameer Kalwani, enables access to clean water, enlisting local entrepreneurs to sell it and monitor water quality remotely. Customers are happy to pay to get clean water at their doorstep. What started with one village three years ago now provides safe water to 70,000 people every day.

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    • Rose Goslinga: Farmer microinsurance

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      Traditional crop insurance relies on farms visits, a proposition which doesn’t add up for small farms. Kilimo Salama, run by Rose Goslinga, uses creative, low-cost methods, such as weather stations, to remotely determine whether drought conditions justify payout. Able to invest more at lower risk, Kenyan farmers are producing historic crop yields.

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      • Paul Needham: Owning electricity

        05:06

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        Paul Needham’s organization, Simpa Networks, makes solar energy available to the poor. By using a pay-as-you-go pricing structure modeled after mobile phone cards, Simpa gives its customers ownership of the electricity. Once the initial cost of the equipment is paid off, the device belongs to the customer and their electricity is free.

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        • Nithya Ramanathan's Nexleaf Analytics

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          Nithya Ramanathan’s organization NexLeaf Analytics couples everyday objects like cell phones with sophisticated analytics to improve projects' impact. In one example, Nexleaf tracked seabirds’ sounds on a distant island, and by processing the recordings with powerful servers, helped scientists better gauge the seabirds’ risk of extinction.

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          • Michael Murphy: Buildings that heal

            05:07

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            At the hospital, you expect to heal, but some buildings are actually making us sicker. With thoughtful techniques as basic as removing hallways and creating outside waiting areas for sick patients, Michael Murphy works with local communities to design buildings that promote health while also creating new jobs.

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            • Megan Mukuria: Keep girls in school

              05:29

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              What causes African girls to miss up to 1.5 months of school each year? By providing access to sanitary pads, ZanaAfrica, founded by Megan Mukuria, is giving girls the freedom and self-confidence to stay in school, while also connecting the community of young women through an online forum that allows them to share information via social media.

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              • Krista Donaldson's Design Revolution

                05:38

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                Krista Donaldson runs D-Rev: Design Revolution, which creates world class products—market and user driven—designed to meet the needs of the four billion people all over the world living on less than four dollars a day.

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                • Jake Porway's Data Without Borders

                  05:15

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                  What happens when ambitious and talented data scientists are connected with social organizations rife with data but lacking resources to do anything with it? Jake Porway's Data Without Borders helps bring these two groups together, using data in the service of humanity to design transformative visualizations and decision-making tools.

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                  • Erika Block's Local Orbit

                    04:37

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                    Erika Block founded Local Orbit to connect local farmers with chefs, institutions and consumers. Her online platform provides marketing, sales, logistics and inventory management for food hubs, farmers, and community groups. The result is a scalable system that makes healthy, locally produced food both affordable and accessible to everyone.

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                    • Dominic Muren's Humblefactory

                      05:08

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                      Dominic Muren’s organization, The Humblefactory, champions “makers,” craftspeople who make up the cottage industries of the world. His online platform helps empower these makers, linking them up with markets through co-manufacturing and product design strategy.

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