This is an unconditional target, based on domestically supported and implemented mitigation measures and policies.UPDATED NATIONALLY DETERMINED CONTRIBUTION â¢ Conditional contribution: An additional reduction of 22 per cent relative to BAU in the year 2030; equivalent to an estimated mitigation level of 2.7 million tCO e in that year. This represents an additional targeted contribution, based on the provision of international support and funding. The combined unconditional and conditional contribution is therefore a 38 per cent reduction in GHG emissions compared to BAU in 2030, equivalent to an estimated mitigation level of up to 4.6 million tCO e in 2030. The mitigation contributions are summarised in the figure below against the BAU baseline for the target year 2030 (Figure ES-1).