Since NAFTA was adopted, U.S. trade interests have often expressed very satisfaction with the agreement. Trade has grown strongly between the three NAFTA nations, but this increase in trade activity has led to growing trade deficits for both the United States with Canada and Mexico-;d the United States imports more from Mexico and Canada than it exports to these trading partners. Critics of the agreement argue that NAFTA is at least partly responsible for these trade deficits and the striking job losses in U.S. manufacturing over the past decade. But before NAFTA, manufacturing jobs were starting to shrink. The NAFTA debate continues. The free trade agreement was concluded in 1988 and NAFTA extended most of the provisions of the free trade agreement to Mexico. NAFTA was negotiated by the governments of U.S. President George H.W.
Bush, Canadian Prime Minister Brian Mulroney and Mexican Prime Minister Carlos Salinas de Gortari. An interim agreement on the pact was reached in August 1992 and signed by the three heads of state and government on 17 December. NAFTA was ratified by the national parliaments of the three countries in 1993 and came into force on January 1, 1994. According to a 2018 Sierra Club report, Canada`s NAFTA and Paris Agreement commitments have been met. The Paris commitments were voluntary and NAFTA was mandatory.  Many critics of NAFTA saw the agreement as a radical experiment developed by influential multinationals who wanted to increase their profits at the expense of ordinary citizens of the countries concerned. Opposition groups argued that the horizontal rules imposed by nafta could undermine local governments by preventing them from enacting laws or regulations to protect the public interest. Critics also argued that the treaty would lead to a significant deterioration in environmental and health standards, promote privatization and deregulation of essential public services, and supplant family farmers in the signatory countries. Clinton signed it on December 8, 1993.
The agreement came into force on 1 January 1994.   At the signing ceremony, Clinton paid tribute to four people for their efforts to reach the historic trade agreement: Vice President Al Gore, Council of Economic Advisers Chair Laura Tyson, National Economic Council Director Robert Rubin and Republican Congressman David Dreier.  Clinton also said, “NAFTA means jobs. U.S. jobs and well-paying American jobs. If I didn`t believe it, I wouldn`t support this agreement.  NAFTA replaced the old Canada-U.S. free trade agreement. The Clinton administration negotiated an environmental agreement with Canada and Mexico, the North American Environmental Cooperation Agreement (NAAEC), which led to the creation of the Commission for Environmental Cooperation (CEC) in 1994. In order to allay concerns that nafta, the first regional trade agreement between a developing and two developed countries, would have negative effects on the environment, the Commission was tasked with carrying out an ex post-post environmental assessment it created one of the first ex-post frameworks for the environmental assessment of trade liberalization, which was to provide a certain amount of evidence regarding the initial assumptions concerning NAFTA and the environment. , such as the fear that NAFTA could create a “race to the bottom” of environmental regulation between the three countries or that NAFTA would put pressure on governments to strengthen their environmental protection.  The CEC organized four symposiums on assessing the impact of NAFTA on the environment and requested 47 contributions from leading independent experts on the subject.
 A 2015 study showed that Mexico`s prosperity increased by 1.31% as a result of NAFTA tariff reductions and 118% of Mexico`s intra-blocking trade.  Inequality and poverty have decreased in the regions of Mexico most affected by globalization.  Studies from 2013 and 2015 showed that small