Here is this month’s article from the Thinking Green campaign, working with you to make the optical world more sustainable. If you have managed to do just a few of the activities in these articles, you are making a big difference already.
This month we’re looking at more ways to save energy. You can read the [first article about energy saving here](https://www.ioassn.org/professional-development/how-to-save-energy-at-work/).
**This month’s activities**
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