It may be illegal in some countries(US), however some countries actually have sane laws! It's legal to decrypt a dvd in Denmark if you own it. You can transfer the content of the dvd to any device you own legally.

So what they are saying is that more CO2 would be absorbed in the water, oka,y but did they factor in that algea can counteract the reaction? Simply like this 6H2O+6CO2 -> C6H12O6+6O2 the process would only need a source of energy(the sun) to commence.

It's not so much the technical challenges that keep private firms grounded. It's the demand for documentation. Every little bolt of a spacecraft needs to be certified. But if the demand for certification is bypassed, amazing things happen. Take a look one this project created by two danes, who want to send a person into space. http://www.copenhagensuborbitals.com/index.php They have set a simple goal, they want to launch a manned rocket into space(define as an altitude of 100km+), which will do a zero g parobola before returning to earth. They have already tested their engine design on several scaled models. And so far their rocket design have performed very well. Their project is a non-profit project supported by sponsers and a lot volunteers. Going into space is easy... dealing with the official red tape.... that's another story indeed.