Tehran, in a video

I accidentally found this video on Youtube, which is about comparing different urban characteristics of Tehran in different periods of time with a taste of humor. I'm not sure about the filming time, but I guess it should be for 4-5 years ago, to say the least.
The funny scene is the background quote of when Mr Djafar which is very happy about current situation of Tehran, his ideas. The background says: Our city, our home ( the motto of municipality of Tehran)

And here is the link:
http://www.youtube.com/watch?v=8QZ5pN6E3YA

The main webpage:
http://www.linktv.org/bridgetoiran

The greatest threat to our planet?!!!

I found a video on the greatest threat to our planet, well apparently whatever I thought of wasn't as harmful as this video talks about!
First I watched it on a blog (http://lifeafterlaschool.blogspot.com) which isn't updated for ages!