Two instruments the authorities have used in environmental policy are taxes on CO2 emissions and subsidies for so-called "green alternatives" such as electric cars and environmentally friendly technology. Give a brief assessment of these two instruments. Feel free to use the three criteria Green Tax Commission (NOU2015: 15) forms the basis for assessing environmental policy instruments: (i) cost-effectiveness (ii) that the emission target is reached (management efficiency and (iii) pollutants must pay.

Rent A 1% 3% 5% 10% 15% 1 99,01 97,09 95,24 90,91 86,96 5 95,15 86,26 78,35 62.09 49,72 Ar= year 10 90,53 74,41 61,39 38,55 24,72 86,13 64,19 48,1 23,94 12,29 20 81,95 55,37 37,69 14,86 6,11 30 74,19 41,2 23,14 5,73 1,51 The table shows the present value of 100 for different combinations of the number of years until the amount arrives and the interest rate