I’ll keep this post short. I usually try to do more than just current events on my blog. In this case though, I’d just like to make sure everyone is aware that we may have already silently crossed a major greenhouse gas level without even noticing it right away. It’s pretty scary stuff. Note that this is not yet considered peer reviewed, AFAIK. It is merely a comment about what is likely in the next IPCC report. I count IPCC as more than just peer reviewed, personally.