Main results of the Climate Change issues solving and on monitoring of climate change are presented in the paper. Slovakia approved the UN Framework Convention on Climate Change (FCCC) in August 1994 and collaborates in the IPCC (Intergovernmental Panel on Climate Change) analyses. Some of such activities have been realized by the Slovak National Climate Programme (established in 1991). Results of the IPCC and other international organization are presented briefly in the paper. Climate change issues are divided there into 5 main topics, some answers to selected questions are presented. More details on these issues can be also found on the web www.dmc.fmph.uniba.sk. Full texts of the IPCC reports are available on the web www.ipcc.ch, others also at the Slovak Hydrometeorological Institute and at the Slovak Ministry of Environment