As an environmental scientist, I am concerned with the question of how many residents can be sustained before we reach an environmental tipping point. When do our water systems fail to provide the supply needed (remember the Bergen County dire drought warning last October?); when does the volume of traffic finally overwhelm our existing roadways and extend commuting times to impossible limits (remember the last time you sat in local traffic?); when does the air quality become too unhealthy to breath (remember the ozone and poor air-quality alerts just last month?); how many people can actually be sustained with a reasonable quality of life within our municipalities, counties and state?