Sõnastikus on 568 märksõna.
| EN | tax incentive |
| EN | technological optimism |
| EN | the Earth Charter |
| EN | the Earth Summit |
| EN | Third World |
| EN | Third World debt crisis |
| EN | top-down |
| EN | tradable permits (marketable permits) |
| EN | traditional knowledge |
| EN | tragedy of the commons |
| EN | transboundary pollution |
| EN | transition management |
| EN | transparency |
| EN | transportation |
| EN | transnational corporation |
| EN | triple bottomline |
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