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In recent years, it\\u2019s become fairly common for people to take their own bags when they go grocery shopping. But for the past 18 months, Philippa Robb and her son, Haydn, have also been bringing their own containers, to avoid food packaging and other single-use plastics. Now Philippa\\u2019s goal is to have a zero-waste home.

Also, Greta Thunberg is now a household name in environmental activism. Find out how she\\u2019s been able to inspire an international youth movement; With a camera strapped to his back, Victor the white-tailed eagle is providing a bird\\u2019s eye view of how climate change is melting Alpine glaciers; and China has hundreds of thousands of emissions-free electric buses. Now the US is trying to catch up.

(Philippa Robb and her 16-year-old son, Haydn Robb Harries, stand in their London backyard with one of their three chickens. Robb feeds the chickens leftovers in an attempt to cut down on food waste. Credit: Brenna Daldorph/The World)