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Kevin, of Race Day Nutrition, writes:

RFID devices have found a niche in the sports timing world. Instead of handheld stopwatches or velcro transponders, racers now strap an RFID to their shoelaces. Race logistics are greatly improved, but at what cost? What is the environmental impact of 10,000 trashed RFIDs after a big city marathon?

He’s looking for input and ideas from the environmental and DIY communities on reuse and recycling of these tags.

RFID race timing vs. the environment