By Michelle Nichols UNITED NATIONS (Reuters) -U.N. chief Antonio Guterres on Tuesday urged rich countries to tax windfall profits of fossil fuel companies and use that money to help countries harmed by the climate crisis and people who are struggling with rising food and energy prices. Addressing world leaders at the 193-member U.N. General Assembly, the climate activist secretary-general stepped up his attacks on oil and gas companies, which have seen their profits explode by tens of billions of dollars this year. “The fossil fuel industry is feasting on hundreds of billions of dollars in sub…