Beijing - Change in Visibility Over 24 Hours

[Trip]

I forget where my parents live, I will have to get the name of their city. They absolutely hate it there in China. They lived just outside of Hong Kong and Beijing, I forget where they moved them now. They are both always sick. They have seen some cool stuff, but would much rather live in the states. My dad has to stick it out a few years and he gets a huge bump in his retirement since this economic downturn really hurt everyone, so he is trying to power through.