The research found continued increases in human - produced greenhouse gas emissions drives up the risk of severe droughts in these regions. (giss.nasa.gov)
Brazilian scientists have already identified mechanisms for drought in the region, and other researchers have confirmed that humans have been affecting the forest in different ways for many thousands of years. (climatenewsnetwork.net)
And there are growing concerns that these costly floods will become a chronic problem even if climate change leads to sustained drought in the region. (scientificamerican.com)