dr. deborah richter is one of vermont's leading addiction specialist. >> i think we do need to spend more money. we need more treatment centers and long term rehab facilities. >> if you have state insurance, they only pay for two weeks at a rehab facility. i think that's bizarre. i know in my first two weeks, i wasn't ready. >> kimberly's now in recovery and she's turned her addiction into advocacy, lobbying for long term rehabilitation so addicts like her have a fighting chance. >> they don't understand that this is a disease. it's not -- i don't suffer from a moral deficiency. it's like anything else. it's like having cancer, you know? i suffer from a disease and there's no known cure. that's really hard to get across to people. >> vermont officials want to double the amount of money spent on treatment next year with federal help. critics admit the state is trying to stem the tide of addiction. the state's new plan is to cut back existing in-patient treatment and focus on out patient care, giving addicts heroin replacement drugs at five hubs around the state. >> what we want to create i

dr. riche: population growth is heading towards some kind of stability as people replace themselves. but where it's located and how they consume -- that's the issue for sustainability. narrator: demographer deborahmbines demographic and spacial data to examine how vulnerable populations in the coastal regions of developing nations will be affected by climate change. balk: prior work has predominantly looked at the causes of climate change. this study asks, what will some of the consequences of climate change be, and what will those consequences be for human population and for human settlements? narrator: predicting future population trends will help policy makers plan mitigation strategies to ensure a better quality of life for coming generations and to protect our environnt. martha farnsworth riche is the former director of the u.s. census bureau, who was instrumental in designing the 2000 census. dr. riche: demography is really the science of studying people or studying populations. in the strictest sense, it refers to studying the growth or the decline of populations in terms of, obviously, people being born, people dying, and then people moving in or moving away. ople are the focus of polici