The canadian government spends many millions of dollars studying this carbon sequestering and storage.
Basically the technology can be summed up like this "you pump carbon dioxide underground and hope it stays there"
(Actually it just gives the money to the oil companies as a thinly disguised subsidy)
Some people have direct issues with carbon storage technology.
The link is probably early evidence that it does not always stay where they put it.
I think similar results may eventually occur with fracking in the future.
What do you think?