Hi PF Community, I'm new to this forum and would like to ask a couple of questions before exploring the forum if you don't mind: 1) How well can I trust the information in this forum regarding scientific researches? Do the moderators keep an eye for false/unproven theories and delete them on spot? Is the information in the forum valid enough for me to quote in a scientific argument outside this forum? 2) Which part of the forum can I find information of science and technology related to Earth's resources and sustainability? For example, I'm not interested in things like Quantum Physics... 3) Since the 'rules' stated that copyrighted materials are not to be posted in the forum, does this mean I can quote any part of the forum outside the forum, for example in my blog? 4) Can you recommend me some of the trusted websites which have applicable science and latest technology news which are relevant to environment? Thanks!