all these graphs that show a massive increase over the last 50 years or so collect data from ice cores, then its all about "fuck ice cores! we can get great data from the side of an active volcano!"
if i waanted to collect data on the co2 levels and average temperature of my house i would not gather my baseline data from the living room, bedrooms and basement for 20 years then switch to temperature measurements from inside my oven and in the summer, also include my attic, while only measuring co2 in a room full of passed out partygoers, at the tailpipe of a running car in the garage, and the basement next to the furnace.
sniffing co2 on the side of a volcano and intimating that this is the key data in global co2 levels is PATENTLY DECEPTIVE since volcanoes release massive amounts of co2 and other gasses. urban centers also have much higher local concentrations of co2 and temperature due to the number of people vs plants, the number of automobiles, furnaces, industrial facilities and the well accepted heat island effect.
even polar weatherstation data is suspect, since 3/4 of the weather stations were simply excluded from the data with no reason given for the UN climate change panel's reports. a report which made claims directly opposite the data collected by several nations who also have their own weather stations. most notably the "shrinking himalayan glaciers" which the indian government climatologists showed were advancing, not retreating during the report period, and data sets from russian weather stations that are diametrically opposed to the data the russian stations actually recorded.
the himalayan glaciers are being reported as melting at an alarming rate
http://www.sciencedaily.com/releases/2012/09/120912125826.htm
and also increasing in mass
http://www.cnn.com/2012/04/17/world/asia/glacier-himalayas-gain-mass/index.html
and also melting super fast again!
http://blogs.telegraph.co.uk/news/geoffreylean/100172868/himalayan-glaciers-are-melting-rapidly-after-all-say-scientists/
and also "fuck we dont know!"
http://dotearth.blogs.nytimes.com/2012/09/12/academy-finds-mixed-climate-impacts-on-himalayan-glaciers-water-supplies/
meanwhile the indain weather experts, and the russians are saying "fuck you guys" to the UN's crazy climate fearmongers and opening their own studies. such an action would be political suicide in the US since so many people have swallowed the bait, and even saying "lets check those numbers" makes one a climate change heretic, a racist luddite, or a dangerous lunatic.
the UN with it's long history of graft corruption and impotence on every issue laid before it is not trustworthy, and unfortunately the US's cilmate research agencies have hitched their wagons to a stone and cant dispute the UN's claims or even re-examine them without becoming a laughingstock.
but for those of us who remember the new ice age scare of the 70's, theres already plenty to laugh at.