In 2025, Ciena conducted an environmental assessment and disclosed corporate waste management data in accordance with recognized sustainability reporting standards.The company provided a breakdown of its waste by treatment method (recovery vs disposal), enabling greater transparency into its waste handling and environmental practices.
| Metric (tonnes) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Waste Generated | 502a | 451a | 405a | |
Total Waste Recovered | 260a | 252.56a | 214.65a | |
Total Hazardous Waste Generated | N/A | N/A | N/A | |
Non-Hazardous Waste Disposed | N/A | N/A | N/A |
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In 2025, Ciena generated a total of 502metric tonnes of waste.a
Of this amount, 51.79% of Ciena's total waste generated was recovered through methods such as recycling, reuse, or composting, while 48.21% was disposed of through landfilling, incineration, or combustion.a
In 2025, Ciena reported a total waste generation of 502 metric tonnes, of which 51.79% was recovered through recycling, reuse, or composting.This moderate level of recovery indicates that Ciena is taking steps toward improving its waste diversion practices, though there is still room to enhance recycling and recovery efforts.a
Since 2022, Ciena's total waste generation increased by 47.65%, including a 11.31%increase in 2025, indicating a persistent upward trend that may reflect scaling operations, inefficiencies in resource use, or a lack of effective waste minimization practices.a
Over the same period, Ciena's waste recovery rate declined by 19.07%, with a further 7.51% drop in 2025, underscoring a weakening in waste diversion performance and a potential drift away from circular waste strategies.a
Overall, Ciena is generating more waste while simultaneously backsliding on recovery efforts, both in the short and long term. This dual negative trend raises concerns about the company’s waste management priorities and its alignment with sustainability goals.