The ultimate objective of the convention is to stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system. (unfccc.int)
«The ultimate objective of both treaties is to stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system». (judithcurry.com)
Authors of the landmark 2009 climate report «The Copenhagen Diagnosis» estimate that by 2020 industrial nations must reduce their greenhouse gas emissions by around 40 % below 1990 levels to secure a decent chance of avoiding dangerous human interference with the climate system. (copenhagendiagnosis.com)