Quick side-note: Sorry the posts have been a bit irregular lately.  It's likely going to stay that way for the next month or two as I try and finish up my degree but I'll try and post whenever I get the chance.   

Well the UN estimated that the global human population passed the 7 billion mark this week.  It's amazing how fast the population is growing and a bit unnerving to know that the world won't be able to keep up with this growth forever.  It has taken only ~85 years to go from 2 billion people to over 7 billion.  If there is something we can learn from the past it's that nature is very good at balancing things out.  Its methods, however, are not always the most forgiving to the species that needs 'balancing'.  One thing is certain: we're going to have to make some changes to the way we live.  On that happy note, here is a neat video made by NPR explaining how and why the population is growing so fast:   

Source: NPR.org