Washington (AFP) – Washington has invoked the environmental provisions of the North American free trade pact to urge Mexico to do more to protect the critically endangered vaquita porpoise, officials announced Thursday. The office of the US Trade Representative (USTR) said it is requesting consultations Mexico under the Environment Chapter of the United States-Mexico-Canada Agreement (USMCA). While Mexico last year put in place measures to protect the world’s most endangered marine mammal, there is evidence it is not meeting its commitments under USMCA, USTR said in a statement. “USTR is commi…