I'm not a leading climatologist, but this doesn't seem like alarming evidence of runaway overheating to me

June 2009 Global Temperature Anomaly Update: 0.00 deg. C « Roy Spencer, Ph. D.

June 2009 saw another — albeit small — drop in the global average temperature anomaly, from +0.04 deg. C in May to 0.00 deg. C in June, with the coolest anomaly (-0.03 deg. C) in the Tropics.