According to NASA, global temperatures are rising and we have experienced nine of the highest average temperatures since 2000.  See Full 2011 was ninth-warmest year since 1880: NASA story at Reuters.

I am all for the environment, but I studied a little math and know when someone is putting a spin on the numbers.  Compare these charts:
    

The first chart is the change in temperature that NASA and other global warming groups show to prove the world is “dramatically” getting warmer, but on close look it says the globe has warmed by about 1 degree Celsius from 1880 to 2011.

The other two charts show the total temperature trend in Celsius and Fahrenheit.  The world is getting a little warmer, but these charts do not look very “dramatic”.  You decide.

Data Source: NASA Global Land-Ocean Temperature Index for the change data, though I had to use the 20th Century average temperature to estimate the total temperatures, since the actual numbers are not available.