This Philadelphia museum hired Iraqi and Syrian refugees as tour guides for its Middle East gallery

The Green Revolution in Asia and Latin America never spread to Africa, due to the continent's varied climate, degraded soil and lack of infrastructure. Now, scientists look to develop a high grossing wheat seed to bring a new green revolution to Africa. The seeds are extremely promising, but there are still some challenges to getting farmers to implement the seeds.

Global social and economic problems are difficult to change. However, fan-activism fuels the interests of fans of popular young adult fiction. Books such as Harry Potter and the Hunger Games have inspired activist groups that raise awareness of global hunger, reading, and relief supplies to impoverished nations, among others. Being a fan has served as a bridge to become politically active and solve the world’s problems.

Alleys in Seattle were once places of illicit, illegal, and unsanitary activity. The International Sustainability Institute in Seattle began organizing music and art events to bring in people, which, in turn, cleaned-up the crime and garbage. As an urban development strategy, adjacent vacant storefronts re-opened for business and beautification could be seen in new gardens.

African American boys were being treated less-than-equally by the Oakland Unified School District – a change of culture was implemented and the playing field leveled. Now, Minnesota is looking to adopt the same system that was started in Oakland by creating schools that are exclusively for African American males in hopes to help them reach higher standards of achievement.

Positive peer pressure - most specifically encouraging community influencers to lead by constructive example - has served as the key to adoption of various technologies and practices to improve quality of life for people worldwide. Whether it's using a new water purification device in Africa or encouraging mothers to breastfeed in South America, it has been behavioral psychology - the human need to meet social norms - more than other incentives that has instigated true and positive change.

In Iowa, the “redistricting” of the state’s legislative and congressional boundaries is done by mapmakers who abide by nonpartisan metrics that all sides agree are fair — a seemingly revolutionary concept in the high-stakes decennial rite of redistricting.

The Center for Applied Nonviolent Action and Strategies provides a "blueprint" for peaceful and democratic revolution, busting myths about the process of nonviolent revolt and helping dissidents in countries around the world to accomplish political goals, such as fighting corruption or protecting the environment.

In order to hunt for the oldest fossils in Africa, scientists needed to produce alternative forms of energy to allow them to live in these desert regions. One such project is the gasifier, which turns discarded doum palm nuts into energy.

The pressure is on for the federal government to spend tax money more wisely. Evidence-based policy making is gaining in popularity as a way for the government to spend tax money wisely. While not quite as flashy or exciting as past ways, this has a proven track record of positive impact.

Boston professors visit countries and homes of foreign students to better understand their culture and gain insights about how to better teach them. The goal is to reach across cultural divides to help a big part of the student population — emigres from faraway lands — that is plagued with low standardized test scores and high dropout rates. Accompanying photojournalism: http://www.bostonglobe.com/news/bigpicture/2015/09/12/seeking-cultural-connections/L3mIQAQM3v9YT9A2K4JliL/story.html