Hopex2

Man, I came to the right place! Thank you for that understandable explanation. So, the questions to him might be: 1. Can you provide a citation for the graph 2. You have noted the residence time, but does that include the replacement of CO2 when some CO2 leaves? I don't want to pretend to have a discussion with him, then keep running back here to bother you guys, but this is helpful to, at least, put him on notice that his posts are being read and that he will have to answer questions about his posts; that he doesn't have free reign because he's the 'resident scientist'. Thank you so much!

Hi, we're having a climate discussion over on a theology site (Reasonable Faith) and I have to admit, we aren't the best at discussing climate science... We have one poster who seems to be qualified to discuss it, but he denies anthropogenic global warming. An example: http://www.reasonablefaith.org/forums/choose-your-own-topic/climate-change-what-are-actual-scientific-data-logical-arguments-6036281.msg1275589094.html#msg1275589094 Would someone be kind enough to look into the discussion and dumb down why he has a point, or, if he doesn't, why? He has said "I'd really like this discussion to be about hard science, the actual data. " But, of course, we aren't very good at cutting through the data to comment on what is the important data set. Thanks in advance. Here is the post I linked: