A now-viral photo shows New Jersey Rep. Andy Kim cleaning up the Capitol rotunda after the mob rampage. Rep. Kim speaks with The World’s Marco Werman. Also, China is the biggest greenhouse gas emitter in the world, but at the same time, it's at the forefront of renewable energy innovation and has some of the world's largest conservation projects. And, a group of artists in Istanbul turned an abandoned apartment building into a multistory art installation.