I can't believe there where more then 200 million people globally unemployeed in 2012
That's terrible! I hope things are improving. More jobs need to be created and corporations encouraged to act more responsibly!
I'm not sure, but the cause for unemployment are heavily debated. 
Automation, outsourcing of jobs, too many people for too few jobs. Those are just a few things I can think of off the top of my head.
One reason is technological unemployment which is the loss of jobs cause by technological change
That's a huge one. Even bigger than job outsourcing. Governments need to look at training people in different types of skills.
Outsourcing dates back to at least 1981 it is a shame. 
It really is. Apparently AT&T are firing 7000 call center employees and sending the jobs overseas, where they can pay as little as $2/hour. Disgraceful.
They need to stop worrying about the pay and give Americans the work.
They're getting a massive windfall from the federal tax cut, but they're still doing it. They just don't care.