The first one is the percentage of the ecosystem area that is protected ( `` Protected % '' ) and the second is the average accumulated exceedance ( AAE in eq ha - 1 year - 1 ) . Acidifying and eutrophying depositions were calculated by EMEP with emissions for the current legislation scenario in 2010 and 2020 ( CLE-2010 and CLE-2020 , respectively ) and for the maximum technically feasible reductions in 2020 ( MFR-2020 ) .