A detailed assessment of identified GHG mitigation options for Rwanda estimates a total emissions reduction potential of around 4.6 million tCO e in 2030 against the BAU emissions in the same year of 12.1 million tCO e. Based on this analysis, mitigation measures have been grouped according to two different components: â¢ Unconditional contribution: A reduction of 16 per cent relative to BAU in the year 2030; equivalent to an estimated mitigation level of 1.9 million tonnes of carbon dioxide equivalent (tCO e) in that year. 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.