With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tina Turner was on hiatus from 1984-1990.
text_B: As an outcome of the Second World Climate Conference , the Global Climate Observing System -LRB- GCOS -RRB- was established in 1992 to ensure that the observations and information needed to address climate-related issues are obtained and made available to all potential users .. World Climate Conference. World Climate Conference. The GCOS is co-sponsored by the World Meteorological Organization -LRB- WMO -RRB- , the Intergovernmental Oceanographic Commission -LRB- IOC -RRB- of UNESCO , the United Nations Environment Programme -LRB- UNEP -RRB- , and the International Council for Science -LRB- ICSU -RRB- .. World Meteorological Organization. World Meteorological Organization. Intergovernmental Oceanographic Commission. Intergovernmental Oceanographic Commission. UNESCO. UNESCO. United Nations Environment Programme. United Nations Environment Programme. International Council for Science. International Council for Science. In order to assess and monitor the adequacy of in-situ observation networks as well as satellite-based observing systems , GCOS regularly reports on the adequacy of the current climate observing system to the United Nations Framework Convention on Climate Change -LRB- UNFCCC -RRB- , and thereby identifies the needs of the current climate observing system .. United Nations Framework Convention on Climate Change. United Nations Framework Convention on Climate Change. The Global Climate Observing System -LRB- GCOS -RRB- is a system that comprises the climate-relevant components of many contributing observing systems and networks .. The mission of the GCOS programme is to help ensure that these contributing systems , taken as a whole , provide the comprehensive information on the global climate system that is required by users , including individuals , national and international organizations , institutions and agencies .. The programme promotes the sustained provision and availability of reliable physical , chemical and biological observations and data records for the total climate system - across the atmospheric , oceanic and terrestrial domains , including the Hydrological cycle , the Carbon cycle and the Cryosphere .. Hydrological cycle. Hydrological cycle. Carbon cycle. Carbon cycle. Cryosphere. Cryosphere
not_related.