Resumen de Galactic winter.
Presents a letter to the editor in response to "Abrupt Climate Change" by Richard B. Alley, about climate changes on Earth, in the Nov. 2004 issue of "Scientific American."
Presents a letter to the editor in response to "Abrupt Climate Change" by Richard B. Alley, about climate changes on Earth, in the Nov. 2004 issue of "Scientific American."
