There has been a massive loss of soil fertility accompanied by periodic droughts. (newscientist.com)
Most likely periodic droughts and high fire risks will always be a fact of life, exactly as natural climate change predicts. (landscapesandcycles.net)
California in particular has a history of periodic drought that dates back far beyond European settlement and the state's growth to become the most populous in the US. (climatenewsnetwork.net)