For every dog sterilized, more are already being born. Bengaluru, a city of more than 15 million people in India, has announced plans to double the number of stray dogs it sterilizes each year, from about 45,000 to 90,000. Officials hope to achieve full animal birth control coverage within three years. The city has already spent nearly $5 million on sterilization in just the past five years. Yet despite decades of effort, Bengaluru continues to face a serious stray dog crisis. Nobody can…