30. In a market for emission permits, firms that emit below their allowed limits will buy even more allowances through a TRADING SYSTEM. receive a subsidy for the amount of emissions. will sell their excess allowances through a TRADING SYSTEM. are taxed by the government for the amount of emissions.

30. In a market for emission permits, firms that emit below their allowed limits
will buy even more allowances through a TRADING SYSTEM.
receive a subsidy for the amount of emissions.
will sell their excess allowances through a TRADING SYSTEM.
are taxed by the government for the amount of emissions.

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