ukraine unfccc the first national communication 1 on climate change united nations framework convention kyiv 1998 2 content executive summary 3 introduction 9 circumstances 10 4 greenhouse gas inventory 15 5 policies and measures to mitigate 24 6 projections of emissions reduction potentials in 31 7 vulnerability adaptation assessment 42 8 research public education 48 future 49 may be most critical complex environmental issue facing humanity last century un fccc is major international legal instrument address issues at a global scale ultimate objective stabilization concentrations atmosphere level that would prevent dangerous anthropogenic interference with system signed june 1992 parliament ratified it october 1996