TOKYO (AP) — People in Tokyo are sweating it out as the government warns of possible power shortages and urges greater efforts to conserve energy while Japan endures unseasonably hot temperatures. The summer rainy season, which usually tempers the heat well into July, ended early this year. The economy and industry ministry on Monday urged people living in the region serviced by the Tokyo Electric Power Co. to conserve power in the afternoons, especially when demand peaks at 4-5 p.m. The power supply is relatively tight after Japan idled most of its nuclear reactors after 2011 meltdowns in Fukushima. It also has been closing down old coal plants to meet promises for reducing carbon emissions.