Fiches info

OA - Liste
et Documents

Une de ObsAnt

Résultats pour:
William F. Ruddiman

décembre 2009

The centerpiece of the early anthropogenic hypothesis is the claim that humans took control of greenhouse-gas trends thousands of years ago because of emissions from early agriculture ( [32] and [33]). A common reaction to this claim is that too few people lived thousands of years ago to have had a major effect on either land use or greenhouse-gas concentrations.