If you are looking for imagery for “LEAF ON”, that is, imagery that is taken while there are leaves on trees just go to this website: http://datagateway.nrcs.usda.gov/ Click on the get data link to get to the imagery that you want to download.  Please note that site works better with Internet Explorer. Share on Facebook

PEIR is an online service that interacts with your mobile phone to provide you with an environmental “scorecard” that tracks some of your effects on the environment and some of what you are exposed to as you go about your day. http://peir.cens.ucla.edu/index.php/about/ This is a really cool and interesting use of mobile technologies coupled with GPS Share on Facebook