Adaptation issues required increased attention during the formation of the Paris Agreement. Long-term collective adjustment targets are included in the agreement and countries are accountable for their adaptation measures, making adaptation a parallel element of the agreement with reduction. [46] Adjustment targets focus on improving adaptive capacity, increasing resilience and limiting vulnerability. [47] In 1992, President George H.W. Bush joined more than other heads of state and government at the Rio Earth Summit in adopting a series of international environmental agreements, including the UNFCCC. The president then ratified the UNFCCC with the Council and approval from the U.S. Senate, and the agreement has since been approved by virtually every nation on earth. .