Is the surface temperature of the earth warming? In the plot below we show a typical temperature

Question:

Is the surface temperature of the earth warming? In the plot below we show a typical temperature profile from the north slope of Alaska. This kind of temperature profile has been used to infer the temperature history of the surface in many places on the Earth’s surface.x

Depth (m) 50 100 150 200 250 300 in -12 -10 Temperature (C) -8 -6 -12 -10 do -6 -4 -4 -2 -2