Basically, you'd send a portfolio (text is fine - all that's needed is the full name of all of the investments and dollar amounts), and a
time frame, and you'll get a custom benchmark portfolio shell comprised of the best available fitting indices for each asset class back, with returns looking back
over any
time frame (as
long as the
data goes back).
Actually Fielding's use of that graph is quite informative of how denialist arguments are
framed — the selected bit of a selected graph (and don't mention the fastest warming region on the planet being left out of that
data set), or the complete passing
over of short term variability vs
longer term trends, or the other measures and indicators of climate change from ocean heat content and sea levels to changes in ice sheets and minimum sea ice levels, or the passing
over of issues like lag
time between emissions and effects on temperatures... etc..
Since most of the «surface» temperature
data used only covers a few decades to a little
over a century, you are assuming the «cause» started in a similar
time frame — they ignore possible
longer term persistence.