Phone lines in Africa and South Asia would never have gotten to the poor - but these places have leapfrogged over last-century technology and gone straight to mobile phones. Now the same thing is happening with off-grid solar power: the fastest -- perhaps the only – way to power the poor.
Read MoreNationally, only about a third of municipal solid waste is recycled. An initiative to use simpler, standardized signs and labels is helping communities reap greater benefits from recycling.
Read MoreIn light of climate change, New York State's Common Retirement Fund, the country's third-largest pension fund, decided to invest in a way that rewards companies with low carbon footprints.
Read MoreMost people are unaware of how much food they waste. Food waste campaigns across the world are using creative marketing to raise awareness and encourage behavior change.
Read MoreMost cities may have enacted smoking laws to curb people from lighting up in public, but cigarette butts continue to blanket streets, parks and beaches. Salem, Mass., and New Orleans are two such communities that have partnered with TerraCycle, a New Jersey-based company that pays by the pound for cigarette waste.
Read MoreFood waste costs billions of dollars a year and is a significant contributor to greenhouse gas emissions. French government just passed a law banning grocery stores from destroying or throwing away unsold food, and instead directing it to those in need.
Read MoreAmerica loses about 31 percent of its food to waste. Driven by environmental, social and economic pressure, more and more cities are starting mandatory compost programs.
Read MoreLack of access to sanitary bathrooms in the village of Kivalina, Alaska led to the implementation of a novel, home-based water sanitation system, currently being tested for effectiveness. The hope is that it proves to be a solution for areas all over the state with lack of access to clean water systems.
Read MoreThroughout India, wastepickers – people who scour landfills for garbage they can sell to recyclers – live at the bottom of society. But the city of Pune did something radical: with the help of a collective, they did away with expensive garbage trucks, and now all household garbage is collected by wastepickers with pushcarts. Pune saves millions of dollars each year and recycles more – and the wastepickers have decent wages and social standing. The concept is now spreading globally.
Read MoreThe amount of plastic debris in our oceans and water sources - especially nanoplastics that are increasingly prevalent in our food chain - is so enormous it's often beyond comprehension, and immensely difficult to address. As countries continue to industrialize and single-use products become more commonplace, the flow of harmful plastics into the environment seems insurmountable. But a number of clever inventions and dedicated individuals are working to help get plastics out of our water - and more importantly - encourage practices to reduce, reuse, and recycle.
Read MoreCollections are versatile, powerful and simple to create. From a customized course reader to an action-guide for an upcoming service-learning trip, collections illuminate themes, guide inquiry, and provide context for how people around the worls are responding to social challenges.
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