A Personal Air-Quality Tracker That Lets You Know What You’re Breathing

How often do you think about the air you’re breathing? Probably not enough, says entrepreneur and TED Fellow Romain Lacombe. He introduces Flow: a personal air-quality tracker that fits in your hand and monitors pollution levels in real time. See how this device could help you track and understand pollution street by street, hour by hour — and empower you to take action to improve your health.

A Forest Garden With 500 Edible Plants Could Lead to a Sustainable Future

Instead of neat rows of monoculture, forest gardens combine fruit and nut trees, shrubs, herbs, vines and perennial vegetables together in one seemingly wild setting. This type of agroforestry mimics natural ecosystems and uses the space available in a sustainable way. UK-based Martin Crawford is one of the pioneers of forest gardening. Starting out with a flat field in 1994, his land has been transformed into a woodland and serves as an educational resource for others interested in forest gardening. This short film by Thomas Regnault focuses on Crawford’s forest garden, which is abundant, diverse, edible, and might be one answer to the future of food systems.