Durango Herald: Global warming will destroy more than half of the habitats of most plants and a third of animals by 2080, biologists conclude, unless steps are taken to limit greenhouse gases. During the last century, average global surface temperatures have increased about 1.4 degrees Fahrenheit, according to the National Academy of Sciences. This global warming is largely because of burning fossil fuels, such as coal, oil and natural gas, which retain heat and warm the atmosphere. Temperatures worldwide are expected...