Catastrophic Climate Change - a heated discussion

[gibreel farishta]

That is fine Upton, here is something that you might like to follow up just for fun

let's say that the yearly anomaly for every year for a decade was 0.8DegC
that is
2000 0.8
2001 0.8
2002 0.8
2003 0.8
2004 0.8

you get the picture up to 2009

So, can there be an upward trend in that data ?

if not, why ?
if there could be, how ?