Environmental concerns centred on limiting carbon emissions have led regulators to push consumers towards low-power CFLs (compact fluorescent light bulbs) and LEDs (light emitting diodes), rather than incandescent bulbs that are little changed since their invention more than 100 years ago. However, new research suggests that the environmental legacy of the toxic metals in CFLs and LEDs, including copper, lead, mercury and zinc, needs to be given greater consideration by policymakers formulating strategies to cut energy use.
via Casting a shadow over green light bulbs | Chemistry World.
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