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fossil fuels...so given that ice core data has been gathered since the 1950's to learn what CO2 concentrations were hundreds of thousands of years ago, and current data from observatories, like Mauna Loa are highly accurate, we know that for the last 800,000 years...including ice ages and warming periods...CO2 never exceeded a band of between 180 and 300 ppm...we are now at 416 ppm and headed for 800 ppm at current rates of CO2 production from fossil fuels (see my earlier posts).

What do you think this dramatic increase will do to the existing glaciers we currently have?...never mind the likely effect on jet streams and ocean currents that are powered by the sun's energy trapped in our atmosphere. Will there be fluctuations?...certainly...most likely due to Milankovitch Cycles...but the trend in temperature is inexorably upwards...and rapid.

btw, no need to play word games...we're talking CO2 concentrations rising that will produce higher and higher global temperatures...again, there will be fluctuations...there will be winters and snowfalls, but the average temps will rise and power major environmental changes...far too quickly for mankind to deal with ''at our leisure'.

As to the urgency of this issue...note that it takes 20-200 years to 'scrub out' a significant portion of that added CO2...once we add it to the atmosphere, we can't just undo the damage, so the sooner we stop burning those FFs, the less stress we, our kids and grandkids will be under.

Oh, there's another thing...there stakes for blowing this, are very, very high...so if you really don't want to take action, you'd better be darn sure you're right...which is why I'm asking you and others to explain yourselves with convincing arguments.