Notes Composed in the Dark of Our Time
by Priscilla Long

Guest Editorial by Priscilla Long Every day, every 24 hours, dozens of species of plants, insects, birds, and mammals become extinct. Seven out of ten biologists consider that our current massive loss of species (the Sixth Great Extinction) poses a major threat to human existence in the next century. We know what the problem is: Global warming. Pollution. Loss of ecosystems to agriculture and to urbanization. Excessive harvest. Invasive species. There you have it. We know it.