5Level of carbon budgetsU.K.
(1)The carbon budget—
(a)for the budgetary period including the year 2020, must be such that the annual equivalent of the carbon budget for the period is at least 26% lower than the 1990 baseline;
(b)for the budgetary period including the year 2050, must be such that the annual equivalent of the carbon budget for the period is lower than the 1990 baseline by at least the percentage specified in section 1 (the target for 2050);
(c)for the budgetary period including any later year specified by order of the Secretary of State, must be such that the annual equivalent of the carbon budget for the period is—
(i)lower than the 1990 baseline by at least the percentage so specified, or
(ii)at least the minimum percentage so specified, and not more than the maximum percentage so specified, lower than the 1990 baseline.
(2)The “annual equivalent”, in relation to the carbon budget for a period, means the amount of the carbon budget for the period divided by the number of years in the period.
(3)An order under this section is subject to affirmative resolution procedure.
(4)For the purposes of subsection (1)(a) there shall be left out of account—
(a)so much of the carbon budget for the budgetary period including the year 2020 as the Secretary of State may determine relates to targeted greenhouse gases other than carbon dioxide, and
(b)so much of the 1990 baseline as is attributable to targeted greenhouse gases other than carbon dioxide.