A tiny insect that thrives in warmer temperatures — the coffee berry borer — has been spreading steadily, devastating coffee plants in Africa, Latin America, and around the world Photo Courtesy of Vegar Abelsnes Photography/Getty via Guardian Erica Westly for Yale Environment 360 , part of the Guardian Environment Network Guardian August 27, 2010 The highlands of southwestern Ethiopia should be ideal for growing coffee. After all, this is the region where coffee first originated hundreds of years ago. But although coffee remains Ethiopia's number one export, the nation's coffee farmers have been struggling. The Arabica coffee grown in Ethiopia and Latin America is an especially climate-sensitive crop. It requires just the right amount of rain and an average annual temperature between 64 degrees Fahrenheit and 70 degrees Fahrenheit to prosper. As temperatures rise — Ethiopia's average low temperature has increased by about .66 degrees F every decade since 1951, ac...