Volcanoes demonstrate the benefits of global warming
Carbon dioxide and heat is just what plants need.

Fast-growing plants herald volcano blast

Thousands of lives could be saved after the discovery that vegetation on the flanks of volcanoes grows more quickly before eruptions.
Scientists who examined satellite images found that trees and bushes grew taller and greener above fractures in the rock through which volcanic magma later spurted out during eruptions.
Increased temperatures and gases released by the rising molten rock appear to encourage faster photosynthesis, the process by which plants use the energy in sunlight to convert water and carbon dioxide into carbohydrates and oxygen. Dr Jean-Christophe Komorowski, of the Institut du Physique du Globe, in Paris, said: "We believe this could be used for improving hazard assessment and, therefore, avoiding disasters."
Dr Komorowski, co-author of the research, published in Earth and Planetary Science Letters, and the lead author, Nicolas Houlié, from the University of California, studied satellite images of Mount Etna, in Sicily, and Mount Nyiragongo, in the Democratic Republic of the Congo