Asymptotics of the Gaussian Curvatures of the Canonical Metric on the   Surface
  We study the canonical metric on a compact Riemann surface of genus at least two. While it is known that the canonical metric is of nonpositive curvature, we show that its Gaussian curvatures are not bounded away from zero nor negative infinity when the surface is close to the compactification divisor of Riemann's moduli space. 
Zheng Huang