emissions
/ɪˈmɪʃənz/ · e·mis·sions
noun
- Substances such as gases, particles, or radiation that are released into the atmosphere, especially those that contribute to pollution. The factory's emissions of sulfur dioxide have been linked to the nearby town's smog problem.
- The act or process of emitting something, especially heat, light, or sound. The emissions of heat from the engine were measured during the stress test.
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Did you know? The first large‑scale use of the word “emissions” in environmental policy came with the 1990 United Nations Framework Convention on Climate Change, which introduced the concept of “emissions trading” to cap greenhouse gases.