ATL82DA249

During arrival, the wind was reported to be from 070 degrees at 15 gusting 20 KTS. On final approach with full flaps, the speed was bled off for an intended full-stall landing. The pilot reported that just prior to touchdown, the wind shifted about 90 degrees to nearly a direct cross wind, probably exceeding the crosswind capability of the aircraft. Subsequently, the aircraft drifted to the side of the runway. The pilot added full power to go around, but could not fly out of the stall. During the attempted go-around, the aircraft was moving left toward trees. The safety pilot made an effort to turn right to avoid the trees, however, the right wing tip contacted the ground and the left wing contacted a tree.