Groups like AgriDjalo, a small company focused on growing rice, are looking to start projects in Senegal that use urban biomass (primarily human waste) to fertilize fields.
The nonprofit group Practical Action encourages the use of earthenware storage coolers called zeer pots to help prevent food waste.
Groups such as the World Food Program and Care are joining forces to create all-women-managed cereal banks in villages throughout the drought-prone Sahel region of Africa. They help protect against famine, but also empower women.
More bicycle lanes, biomass generation, public transit, cooling buildings with seawater – it's all intended to make Copenhagen the world’s first carbon-neutral capital by 2025.
For decades Yacouba Sawadogo has been using a traditional method to replant trees and help stop the Sahara Desert from overtaking Burkina Faso.
Experience in northern Japan illustrates that even incremental investment in nuclear power threatens human civilization. The Fukushima disaster should once and for all drive global society away from nuclear power, and toward renewable energy.
Ensuring that women make their own choices about child-bearing and cutting waste are two important ways to ease the challenges of a more populous world.
Homero Aridjis, one of Mexico's top environmentalists and poets, has led the battle to save the habitat of monarch butterflies, Pacific gray whales, and sea turtles.
Though Japan appears to be set on a short-term course that includes a significant role for nuclear power, the future is geared toward a revolution in renewables, say advocates.