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With this general result applied to the corpus, ego networks were carried out for the
keywords “energy” and “water,” as shown in Fig. 2. Ego network enables a description
of the relationship and role of the “ego” (keyword) in its social network. The network
is composed of one keyword centring the graph (the ego), all users linked to this ego
(called “alters”), and all relations between the alters (keywords). Among the objective
of using this method was to identify the most important keywords linked to energy,
water, food, climate change and health (Fig. 3). Then, we carry out the ego network
to these themes and for each actor (Fig. 4).
These results (Figs. 1 and 2) demonstrate that water, energy, and food are interdependent and not easily disentangled. Thus, any strategies or decisions made by only
Fig. 2 Ego network of keywords water and energy. Source Authors
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