Blockchain technology – a high-tech way to securely manage and protect data – is best-known as the driver of the cryptocurrency Bitcoin. Now, a U.S. coffee importer is using it to improve the lives of coffee farmers and some of the poorest communities in Central America. Faith Lapidus reports.
India's southern Kochi city in Kerala state is among the world's most innovative airports, completely powered by solar energy. Winner of the United Nations Champions of the Earth Award for Entrepreneurial Vision in 2018, the project is testimony to India's ambitions of rapidly scaling up the use of solar power to reduce its carbon emissions. Anjana Pasricha has this report.
Called the "greenest office building in the world," the Bullitt Center in Seattle, Washington, generates its own electricity and its own water, collected from rain falling on the roof. Opened on Earth Day in 2013, the Bullitt Center has been nicknamed a "Living Building." Natasha Mozgovaya visited the green building to see for herself what makes it so unusual. Anna Rice narrates her report.