Where does the author of  Amazon Watershed write an article in? 
Amazon Watershed: Amazon Watershed : the new environmental investigation is a 1991 book by British writer and environmental and political activist, George Monbiot. George Monbiot:  He writes a weekly column for "The Guardian", and is the author of a number of books, including "Captive State: The Corporate Takeover of Britain" (2000) and "Feral: Searching for Enchantment on the Frontiers of Rewilding" (2013).
"The Guardian"