What happens when humans finally win the war with nature and end up in charge of ecology? A question for the future? Think again. In “Peak Wood: Nature Does Impose Limits”, John Perlin describes what happens when human societies, starting in prehistory, have completely transformed their ecosystems and ultimately themselves, by clearing away forests to improve hunting and gathering, for […]
Millennia before humans discovered coal, indeed, millennia before there was civilization, Homo sapiens had discovered fire and was making extensive use of it. In a study just published by Bill Ruddiman and myself (Ruddiman and Ellis, 2009), we show that early farmers using fire likely cleared vast areas of forest thousands of years ago, even when human populations were small, […]
Not only do humans burn away forests to enhance their food supply, they also do it when they battle each other! Or so says a study published by Zhen Li and his colleagues this week in the Proceedings of the National Academy of Sciences (Li et al. 2009). By linking a careful investigation of paleoclimate indicators from sediments with burning […]
Humans have been using fire since prehistory- indeed, it is one of our defining characteristics -distinguishing us from all other species. There is little doubt that burning of forests to attract game and later, to clear land for agriculture have had long-term global impacts on climate and the biosphere. There is also much evidence of serious ecological consequences to the […]