Rio Olympics opening ceremony highlights Brazil, environment
![Rio Olympics opening ceremony highlights Brazil, environment](http://bloximages.chicago2.vip.townnews.com/democratherald.com/content/tncms/assets/v3/editorial/8/c3/8c33c4a8-f5b2-5bcb-a5a5-df8142fdd637/57a439d696dbf.image.jpg?resize=300%2C179)
Workers continue to put the finishing touches to the Olympic Tennis Centre at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Thursday, Aug. 4, 2016. (AP Photo/Ben Curtis)
Workers continue to put the finishing touches to the Olympic Tennis Centre at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Thursday, Aug. 4, 2016. (AP Photo/Ben Curtis)