I mentioned we looked at birds and marine mammals and looked at basically the environmental impact of the system, and finally we looked at the economics, and what I mean by economics is, what is the energy required to run the system?
Já referi que observámos aves e mamíferos marinhos e observámos o impacto ambiental do sistema. Por fim, estudámos a economia. Quando falo em economia refiro-me à energia necessária para manter o sistema a funcionar.