Today NASA GISS published their temperature measurements for April. I've been following them for a long time, and lately every month now I'm struck by how high they're getting. A temperature 1°C above the 1951-1980 baseline used to be almost unthinkable. Now they're showing up more and more. The land anomalies are lately about 1.3°C -- that's 2.3°F! -- since, basically, 1965 (average of the baseline limits). And there's no sign of the warming stopping.
Yes, temperatures are up because we're currently in an El Nino. Roy Spencer thinks half of all warming last century was due to El Ninos, even though the averageMEI over that period is -0.03, which is just a tad La Nina-ish.