based text analysis of all O*NET green task statements, terms within the skills/competences from the ESCO taxonomy,<sup>46</sup> and terms in Eurostat manuals for data collection and analysis (1999 and 2009). Second, it also included commonly mentioned terms that frequently appeared in more than 72 papers and reports in the labor environmental economics literature. The green dictionary was then compared with dictionaries shared by Lightcast (formerly Burning Glass Technologies, BG), a list of 81 job titles within O*NET, and a list of 154 words or phrases from Janser (2019). These dictionaries were informative in the sense that they confirmed the appropriateness of many terms already selected. It should be noted that these dictionaries also included terms that may or may not be environmentally friendly depending on the context applied (e.g., energy engineers, thermograph, battery technology) which received different treatment as explained below or were not included. The desk review resulted in the evaluation of 451 terms, organized into 14 main green categories according to topic areas— categories that frequently appeared in the consulted sources (e.g., GTP survey questionnaire).<sup>47</sup> Appendix C contains a full list of all the consulted sources and table 3.1 provides some examples of terms present in the cited sources that were considered for inclusion.

**Table 3.1. Examples of terms under consideration**

|**Consulted sources**|**Examples of termspresent in cited sources**|
|---|---|
|BLS GTP survey|Renewable source, renewable energy, solar energy, wind<br>energy, landfill gas, energy efficient, carbon offset, composting,<br>remanufacturing, greenhousegas,LEED|
|Most common environmental words in<br>O*NETgreen tasks|Environmental, energy, solar, green, waste, wind, carbon,<br>biofuels,recycling,hazardous,repair,landfill|
|ESCO taxonomy S3.3.2 complying with<br>environmentalprotection laws and standards|environmental impact, erosion control, sea pollution, protect<br>trees, protect wilderness areas,conserve natural resources|
|Eurostat manuals for data collection and<br>analysis|Air pollution control, solid waste management, noise control,<br>wastewater management, soil remediation, hazardous waste<br>collection, waste recovery and recycling, resource-efficient,<br>energysaving,eco-tourism,renewable energy|
|Commonly mentioned terms the in<br>environmental economics literature|Climate change, global warming, environmental, sustainability,<br>recycling,renewable energy|
|Emsi-Burning Glass Technologies dictionary|Clean energy, renewable energy, wind energy engineers,<br>recycling coordinator, climate change policy analyst,<br>conservation scientist|
|Janser (2019) dictionary|Lithium ions, smart grid technology, passive house, tree care,<br>bicycles,lightweight construction|

Once the first version of the dictionary was completed, it underwent several robustness checks. First, it was manually examined through more than 50 rounds of random tests to ensure that the dictionary correctly identified the task statements in the occupational database. As a result of this process, 104

> 46 Those within S3.3.2 complying with environmental protection laws and standards.

> 47 Topic areas were include  Agriculture, forestry, and fish production, Clean energy, Climate change common terms, Energy efficiency, Environmental certifications, Environmental knowledge, Environmental regulations and compliance, Environmental software, Greenhouse gas reduction and pollution reduction & removal, Low-carbon mobility, Low-polluting construction, Natural resource conservation, Recycling and reuse of waste and materials, and Repair.

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