Yes, you were referring to the 400 ppm. At least I thought you were. I apologize for not quoting you verbatim. But again I said more on this earlier. Glaciers are melting... If you don't believe that then you need to read more on the subject and examine how you form your conclusions. I don't mean this smugly. I posted a link and more commentary you didn't respond to. So rather than ramble on I'll post more research. [url=https://www.newscientist.com/article/dn11638-climate-myths-human-co2-emissions-are-too-tiny-to-matter/]note last of first 3 graphs[/url] [url=http://www.dailyclimate.org/tdc-newsroom/2013/12/iceland-ice-climate]Icland's vanishing glaciers[/url] [url=http://www.ucsusa.org/global_warming/science_and_impacts/science/human-contribution-to-gw-faq.html#.Vs5v0UU77CQ]human-caused (CO2) increase in global warming[/url]