This is fun. Commentor Hoo is diligently calculating to show that the graph of world temperature over the past 16 years (above) shows a warming "trend".
And with that, I will repost the numbers for the temperature trend obtained from HadCRUT4 from various starting dates until today:
1995–2012: +0.109±0.119 °C/decade
1996–2012: +0.107±0.131 °C/decade
1997–2012: +0.058±0.136 °C/decade
1998–2012: +0.052±0.153 °C/decade
1999–2012: +0.095±0.162 °C/decade
2000–2012: +0.056±0.179 °C/decade
We are talking about the time dependence of the average global temperature anomaly ΔT as a function of time t. Specifically, ΔT(t) = ΔT(t0) + β(t−t0). Here t0 is a starting point in time and β is the linear slope.
... the HadCRUT4 data set (among others) yields a positive β even if you cherry-pick the starting point? The values of β for various starting points are quoted in my previous comment.
Hoo's evidence for global warming in that graph:
"ΔT(t) = ΔT(t0) + β(t−t0)".
Global warming science in real time, as it happens.