By doing so, it would also place moral pressure on emerging countries to do their part.

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And public concern over the world's oceans will put governments under moral pressure.

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Some states have recently shown signs of responding to moral pressure.

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"The structure of this settlement agreement places moral pressure on the court to keep the fine to a minimum so that the reparation is kept at a maximum, " said Mr Justice Bean, who said he was under pressure to keep the court fine to a minimum.

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He repeated the argument that there would be moral and political pressure upon Mr Salmond to adhere to, for example, any suggestions from the Electoral Commission for amending the proposed referendum question.

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Perhaps more importantly, the pressure to do the right thing is not just a moral obligation anymore.

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