Washington (AFP) – US climate envoy John Kerry vowed Friday the United States will meet goals it submitted to the United Nations on slashing greenhouse gas emissions, despite a Supreme Court ruling that curtailed the government’s powers. “We are determined to achieve our goals. We can achieve our goals,” Kerry told AFP. “But obviously it would help if we had a majority of the Supreme Court in the United States of America that actually understood the gravity of the situation and was more willing to try to be helpful rather than present a hurdle of one kind or another,” he said. President Joe Bi…