Space/Science — HabitableZone

Space/Science » in reply to speaking of livelihoods, my bet offer is open

Based on what results?
TB — (archived)

I use HADCRUT3v for long-term temperature trends.

Source

I find these graphs interesting. The people who do this one use 1961-1990 to create their "zero" line. I don't know why they stopped almost 20 years ago. That zero line is very important psychologically. It's what lets you do scary illustrations like this:

http://www.cru.uea.ac.uk/cru/data/temperature/nhshgl.gif


Note that when all is said and done, we're talking one degree C in 150 years.

More detailed chart:

http://hadobs.metoffice.com/hadcrut3/diagnostics/HadCRUT3_bar.png


So what's actually happening now? A blip before another rise? A decade long dip like that in the 1940s followed by almost 30 years of near-flatness? A decade long dip like that in 1900 followed by 30 years of steady rise? Until the 1940s dip? How long before we know?

What would the chart look like if it were possible to shove it back several hundred more years (past the Little Ice Age)?

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