For the purpose of reporting, the results of High Case scenarios are considered, since they reflect the most ambitious scenario in socio-economic terms and the most significant development of emissions. Values should be read as the maximum emissions possible under the projection assumptions. As mentioned in the Nacional communication, work is ongoing on a new modelling exercise with a 2050 horizon, aiming at identifying and analysing the implications of cost-effective paths in order to achieve the national target of net-zero GHG emissions by 2050, as well as identifying the primary means of decarbonisation associated. This work, which is being developed under the Roadmap to Carbon Neutrality 2050, started in October 2017 and will go on until the first quarter of 2019. The latest available GHG projections show that under the "With Existing Measures" (WEM) scenario, total GHG emissions (without LULUCF) are projected to be 6% higher in 2020 than in 1990 and 6 % lower in 2030 compared to 1990.