
That's the TLS satellite channel (lower stratosphere) from RSS http://ssmi.com/msu/msu_data_description.html#msu_amsu_trend_map_tls )
But why aren't the skeptics all over this?
Two reasons -
1) Its a predicted result of warming by greenhouse gasses
2) If you're banking on changes in solar output to explain recent increases in the surface temperature, you really don't want to have the stratosphere cooling on you.
The why is simple - the theory that increasing GH gasses will cause global warming depends on the fact that GH gasses trap infra red radiation being radiated from the earth surface - more GH gasses means more IR being absorbed hence increased temperatures.
But that means that the lower atmosphere, with its greater gas concentration and closer proximity to the earth's surface, will absorb more IR radiation from the earth's surface so that less IR makes it to the upper atmosphere (the stratosphere). Decrease the IR reaching the stratosphere and it's going to cool.
Which is what AGW theory predicts - a warming lower atmosphere and a cooling stratosphere.
FWIW - here's what the RSS satellite data (from the same link above) show for the lower atmosphere:

However, if you're betting that increases in the suns output has caused recent warming, then you would want to see the upper atmosphere warming - after all, solar radiation hits the stratosphere before the lower atmosphere and the earth's surface so how could this supposed extra solar radiation pass through the stratosphere and cause the lower atmosphere to warm and yet not warm the stratosphere but actually cause it to cool?
Hmmm - maybe that's why skeptics don't like to talk about the cooling stratosphere?