Associated Press: The greenhouse gas goals announced by the nations responsible for most emissions are insufficient against the disastrous effects of climate change, a U.N. official said Monday. Janos Pasztor, Secretary-General Ban Ki-moon’s top climate adviser, said the goals, submitted to the U.N. as part of a voluntary plan to roll back emissions, make it highly unlikely the world can prevent temperatures from rising above the target set at the Copenhagen climate conference in December. “It …