“In 1992, a team from the University of New Mexico reported that ancient soils showed extremely high levels of carbon dioxide 440 million years ago, an age of primitive sea life before the advent of land plants and animals. The carbon dioxide levels were roughly 16 times higher than today. Surprisingly, the scientists said, this appeared to coincide with wide glaciation.” (NY Times; HT Robert Bidinotto)
Vía Pajamas Media.
dilluns, 13 de novembre del 2006
És realment el CO2 el responsable de l'escalfament global?
