by Richard Conniff/Yale Environment 360
With apologies for my recent absence, I have been focusing on a book project lately and will continue to do so most of this year. But this is one I wrote in December.
People have lived in Castro Laboreiro, where northern Portugal borders Spain, long enough to have built megaliths in the mountainous countryside and a pre-Romanesque church, from 1,100 years ago, in the village itself. But the old rural population has dwindled away, leaving behind mostly elders yearning for their vanishing culture.
Roughly half the area once grazed by sheep, goats, and cattle is now unused and reverting to nature, meaning that wolves, bears, wild boars, and other species have rebounded in their old habit. Iberian ibex and griffon vultures thrive where they were extinct, or nearly so, as recently as the 1990s. So what feels like loss to some village residents, looks to others like a great recovery.
Places like Castro Laboreiro are of course everywhere. Abandonment of rural lands has become one of the most dramatic planet-wide changes of our time, affecting millions of square miles of land. Partly it’s a product of rural flight, and the economic, social, and educational appeal of cities. Partly it’s about larger forces like climate change and globalization of the food supply chain. But the result, according to a new study in Nature Ecology and Evolution, is that the global footprint of agriculture has “started decreasing in size during the past two decades, with more land now being abandoned Read the rest of this entry »