Currently Greenpeace considers global warming to be the greatest environmental problem facing the Earth. Greenpeace calls for global greenhouse gas emissions to peak in 2015 and to decrease as close to zero as possible by 2050. To reach these numbers, Greenpeace has called for the industrialized countries to cut their emissions at least 40% by 2020 (from 1990 levels) and to give substantial funding for developing countries to build a sustainable energy capacity, to adapt to the inevitable consequences of global warming, and to stop deforestation by 2020. Together with EREC, Greenpeace has formulated a global energy scenario, "Energy where 80% of the world's total energy is produced with renewables, and the emissions of the energy sector are decreased by over 80% of the 1990 levels by 2050.