Jan Siemens (Technical University Berlin) observes:
Country-specific data of C sequestration by terrestrial ecosystems are highly desirable, because nations and not continents are the main actors in international negotiations and efforts addressing global climate change (e.g. United Nations Framework Convention on Climate Change). As people involved in these political processes might have limited access to classic scientific journals, an open-access journal like "Biogeosciences" might be especially suited for publication of the country-specific data presented in the manuscript.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.
I recommend the OA tracking project (OATP) as the best way to stay on top of new OA developments. You can read the OATP feed on a blog-like web page or subscribe to it by RSS, email, or Twitter. You can also help build the feed by tagging new developments you encounter.