<|begin_of_text|><|start_header_id|>system<|end_header_id|>You are an expert on climate change, human mobility and migration. Answer the question truthfully.<|eot_id|><|start_header_id|>user<|end_header_id|>Here are the title and abstract of a scientific paper probably related to climate change, human mobility and migration..
Title:"Population policy vor the United States."
Abstract:"A continuation of the present population policy of the U. S.[long dash]which is quite indefinite except for immigration restrictions[long dash]is almost sure to mean that the population will reach its maximum size before the end of the century and then begin to decrease. The change from a growing to a decreasing population is more important than the size of the population, actual or relative. It will increase the need for better planning of economic activities, but should make it possible to focus a larger proportion of our effort on consumers'' goods, and hence to improve the living conditions of a large part of our people. A new population policy should attempt to prevent a too rapid slowing up of growth, in order that our social and economic institutions may be prepared for the ensuing decrease in numbers. It should lower the birth rate among groups least desirable from the standpoint of heredity and culture by making it easier for them to learn effective ways of spacing births, and to secure the appliances or materials necessary for putting this knowledge into practice. It should increase the birth rate among other groups by encouraging the single adults among them to marry, the childless couples to have one or two children, and the families already of this size to have one or two additional children. Experience being gained in Sweden regarding measures to attain these ends should be utilized.."
I have six questions you need to answer.
Q1: Is this article is about 'human migration mobility': 1 = yes; 0 = no. Answer with a number. Do not give a textual explanation.

Q2: What drivers of migration and mobility does the article study? 0 = 'other', 1 = 'climate', 2 = 'environment', 3 = 'economic', 4 = 'conflict', 5 = 'political', 6 = 'social', 7 = 'family'. Answer with a number or a sequence of numbers separated by commas. Do not give a textual explanation. 

Q3: What is the overall sentiment of the article?:0 = 'neutral', 1 = 'negative', 2 = 'positive'. Answer with a number. Do not give a textual explanation.

Q4: What type of climate or environmental keywords are explicitly mentioned?:  0 = 'none', 1 = 'algal blooms', 2 = 'infestation', 3 = 'infectious diseases', 4 = 'ocean acidification', 5 = 'sea ice', 6 = 'acid rain', 7 = 'drought', 8 = 'cold wave', 9 = 'heat wave', 10 = 'glacial', 11 = 'wildfire', 12 = 'air pollution', 13 = 'biodiversity loss', 14 = 'coastal erosion', 15 = 'land degradation', 16 = 'deforestation', 17 = 'desertification', 18 = 'water pollution', 19 = 'diebacks', 20 = 'permafrost loss', 21 = 'sand mining', 22 = 'sea level rise', 23 = 'earthquake', 24 = 'tsunami', 25 = 'volcanic', 26 = 'flood', 27 = 'avalanche', 28 = 'landslide', 29 = 'downburst', 30 = 'thunderstorm', 31 = 'sandstorm', 32 = 'haze', 33 = 'storm', 34 = 'cyclone', 35 = 'blizzard', 36 = 'hail', 37 = 'snow', 38 = 'tornado', 39 = 'wind', 40 = 'hurricane', 41 = 'typhoon', 42 = 'other'. Answer with a number or a sequence of numbers separated by commas. Do not give a textual explanation. 

Q5: What discipline does the article belong to?: 0 = 'other', 1 = 'social science', 2 = 'natural science', 3 = 'arts and humanities', 4 = 'multidiscipline and interdiscipline'. Answer with a number. Do not give a textual explanation.

Q6: Does the article apply quantitative and/or statistical analysis?: 0 = 'no', 1 = 'yes'. Answer with a number. Do not give a textual explanation.

Use the following template: 

Q1 = [];
Q2 = [];
Q3 = [];
Q4 = [];
Q5 = [];
Q6 = [].<|eot_id|><|start_header_id|>assistant<|end_header_id|>Answer:

Population policy vor the United States
A continuation of the present population policy of the U. S.[long dash]which is quite indefinite except for immigration restrictions[long dash]is almost sure to mean that the population will reach its maximum size before the end of the century and then begin to decrease. The change from a growing to a decreasing population is more important than the size of the population, actual or relative. It will increase the need for better planning of economic activities, but should make it possible to focus a larger proportion of our effort on consumers'' goods, and hence to improve the living conditions of a large part of our people. A new population policy should attempt to prevent a too rapid slowing up of growth, in order that our social and economic institutions may be prepared for the ensuing decrease in numbers. It should lower the birth rate among groups least desirable from the standpoint of heredity and culture by making it easier for them to learn effective ways of spacing births, and to secure the appliances or materials necessary for putting this knowledge into practice. It should increase the birth rate among other groups by encouraging the single adults among them to marry, the childless couples to have one or two children, and the families already of this size to have one or two additional children. Experience being gained in Sweden regarding measures to attain these ends should be utilized.