El presidente de Panamá, José Raúl Mulino, rechazó este domingo las amenazas del presidente electo de Estados Unidos, Donald ...
BEIJING, Dec. 22 (Xinhua) -- A collaborative study by Chinese and U.S. scientists has revealed how a massive carbon release 56 million years ago impacted ocean chemistry, offering critical insights ...
据CTV报道,加拿大环境部称,夜间气温降至寒冷的-18摄氏度。今天上午晚些时候,在晴间多云的天气中,气温将升至-7摄氏度,但风力将使体感温度达到-22摄氏度。周日晚上,有30%的概率会出现阵雪,预计最低气温将降至-11摄氏度。