Additional info from Skeptical Science
When looking for evidence of global warming, there are many different indicators that we should look for. While it's natural to start with air temperatures, a more thorough examination should be as inclusive as possible: snow cover, ice melt, air temperatures over land and sea, even the sea temperatures themselves. A 2010 study included 10 key indicators, and as shown in Figure 1, every one of them is moving in the direction expected of a warming globe.
Figure 1: Ten indicators of a warming world. Source: NOAA.
The question of global warming stopping is often raised in light of a recent weather event — a big snowfall or drought-breaking rain. Global warming is entirely compatible with these events; after all, they are just weather. For climate change, it is the long-term trends that are important, measured over decades or more. And those long-term trends show that the globe is still, unfortunately, warming.
Adapted from © John Cook and Skeptical Science