Yeah, it’s sort of hard to define “environmentally friendly.” We fart. That’s OK, totally natural, environmentally friendly, right? 7 billion of us fart? Well, that’s stinking greenhouse gas right there…
I’m not sure if the data you’re referring to comes from a different study, but this one found that taking short 2-5 minute walking breaks from sitting every 20-30 minutes throughout the day improves metabolic biomarkers. Standing breaks didn’t have the same effect. The CNN article is trying to say that taking a short walk after a meal can improve blood sugar levels, which is even simpler.
So, I think to get the benefits that the study talks about, it’s probably safer to assume that you would only get benefits by walking 2-5 minutes more than 2-3 times a day, anyway. Wikipedia’s articles still indicate 30-60 minute of walking a day, 5 day a week.
[BBC] Recycling: The gold jewellery made from old phones (www.bbc.com)
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Just 2 minutes of walking after eating can help blood sugar, study says | CNN (edition.cnn.com)
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