Paris Agreement is a document which deals with reducing greenhouse gas emissions and adaptation and finance starting from 2020. It's the first-ever universal, legally binding global climate deal. The agreement sets out an action plan to limit global warming to below 2 degrees Celsius and to pursue efforts to limit the temperature increase to 1.5 degrees Celsius above pre-industrial levels. The deal also sets the goal of a carbon-neutral world sometime after 2050 but before the end of this century.