The new computers and electronic gadgets snapped up during the holiday shopping frenzy are mostly destined to replace older gear.

The castoffs that aren’t handed down, donated or kept as backups tend to end up in local landfills.

But how does one actually recycle the stuff—with a guarantee it won’t be shipped off to Asia and melted down into a toxic stew of heavy metals that will threaten people and the environment there?

After years of the problem growing steadily worse, help is on the horizon.

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