01000200030004000500060007000800090001980 1985 1990 1995 2000 2005 2010
YearTotal annual COemissions 2(million metric tons)United StatesBrazilChinaIndia0510152025Year1980 1985 1990 1995 2000 2010BrazilChinaIndiaUnited StatesPer capita COemissions 2(metric tons per person)Based on data from the United Nations Statistics Division, Millennium
Development Goals Indicators.b.a.Critical and Creative Thinking Questions 241
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✓✓THE PLANNER
Sustainable Citizen Question- Distinguish between the benefits of the ozone layer in the
stratosphere and the harmful effects of ozone at ground
level. - What is the Montreal Protocol, and what environmental
problem is it designed to correct? - Discuss some of the possible causes of forest decline.
How might these factors interact to speed the
rate of decline?
8–10. This map shows one model of how warmer global
temperatures might alter precipitation in the United States
in the next 100 years. Colors indicate the percent change in
annual precipitation per century.
- Name three states with climates that may become
significantly wetter. Name three states with climates that
may become significantly drier. Explain your answer. - Locate the state where you live. Will it be wetter, drier, or
about the same? - In what ways might the projected changes in precipitation
in the next 100 years impact U.S. agriculture? the U.S.
economy?`
££° Consider the figures below, which depict total annual
CO 2 production and per person CO 2 production for the
United States, China, India, and Brazil over the past 30
years. Some people argue that China and India have
the biggest responsibility to cut emissions, because
they represent the greatest long–term emissions
sources. Others argue that because the United
States has such high per person emissions, it bears
the greatest responsibility. Which, if either, of these
arguments do you find more compelling? Why? Does
the historically low total and per person emissions from
countries like Brazil affect your decision?