Keith's note: @NASASocial is retweeting lots of selfies today (this is one of the ones they decided to retweet). Instead of trying to raise issues relevant to Earth Day, NASA is turning the #Globalselfie thing into posting selfies of people and their pets. They could have easily tweeted a little guidance to people and ask them to highlight issues that affect Earth, the environment, climate change. They could also post links to specific projects that NASA is doing in this regard ... or organizations working to address these issues - but no, that takes strategic thought. Why think too hard, @NASASocial? Just post selfies.