It has been adopted across much of South America.
This technique is often confused with No-till which is somewhat similar but more for 'industrial' farmers.
CA, like Biochar, increases soil fertility and sequesters carbon but only requires a change in agrcultural practices!
To get some knowledge of CA it is probably best to go to Wikis though they are far from perfected:
http://en.wikipedia.org/wiki/Conservation_agriculture but this Wiki does not even mention carbon sequestration
Both should prove useful but it will be important to establish which is the best for each situation!