the murder rate was the highest in at least 20 years there were more than 25000 homicides in mexico last year government says its the second group of refugees arriving under what trump called a dumb deal up to 58 australian refugees to fly to us as part of resettlement deal the urgent risk kills thousands of people around the globe each year and covers urban landscapes in smog mayors of the worlds major cities speak out about air pollution air pollution may be a global problem but its one where local action makes a big difference across the nation cities cities must get creative in the fight against air pollution