Global human population growth amounts to around 83 million annually, or 1. This book broadens and deepens understanding of a wide range of population climate change linkages. Share of the worlds population growth and co2 emissions growth. The consequences of increased population growth for climate. This principle of differentiated responsibilities raises the question of the role of population growth in global warming since population and environmental impacts. Consequently, the demand for energy and the production of waste are significant producers of greenhouse gas emissions that contribute to climate change. The latest united nations projections dont anticipate a turning point for population growth in the course of the. In reading this chapter, it needs to be borne in mind. In just 50 years, the worlds population has more than doubled to over 7. The global population has grown from 1 billion in 1800 to 7. International journal of agricultural sustainability.
The answer depends importantly on ethical questions about whether our ultimate goal should be to increase the number of people who are happy or rather to increase the average level of peoples happiness. The climate change agenda has risen substantially in global and national importance and the topic has thus been given a dedicated chapter in this 2. Pdf on jan 1, 2017, shivani uniyal and others published human overpopulation. Peru, one o f the countries which is being affec ted by climate change, in 20 ha s a. Neither global warming nor population growth was on the environmental radar. It is expected to keep growing, and estimates have put the total population at 8. Future population growth is uncertain and matters for climate. According to the worldwatch institute, a nonprofit environmental think tank, the overriding challenges facing our global civilization are to curtail climate change and slow population growth. Impact of population growth and population ethics\xmlpi\\ pnas. Lessons for a sustainable future population education. Global population increased by 2 billion during the last quarter of the 20th century, reaching 6 billion in 2000. Incorporating population dynamics into research, policymaking and advocacy around climate change is critical for understanding the trajectory of global greenhouse gas emissions, for developing and implement.
The largest single threat to the ecology and biodiversity of the planet in the decades to come will be global. Dynamics and climate change held on 2425 june 2009. Globally, economic and population growth continued to be the most important drivers of increases in co2 emissions from fossil fuel. Impact of population growth and population ethics on. Chapter 11 climate change department of environmental. Find, read and cite all the research you need on researchgate. The links between rapid population growth and concerns regarding climate change have received little attention.
The table below shows that from 2020 to 2050, the bulk of the worlds population growth is predicted to take place in africa. Climate change population matters every choice counts. Atlas of population and environment all available online at. The extent of climate change depends in no small part upon the pace of growth in.
All napas are available in pdf format on the unfcccs website. Some commentators have argued that slowing population growth is necessary to reduce. We investigate how future population growth is relevant to climate change policy. Each child born in the united states will add about 9,441 metric tons of carbon dioxide to the. Linking population dynamics, particularly population growth with climate change is sensitive. Climate change induced mass migration is likely to be significant, and must be recognized as a legitimate response to climate change. A 2009 study of the relationship between population growth and global warming determined that the carbon legacy of just one child can produce 20 times more greenhouse gas than a person will save by driving a highmileage car, recycling, using energyefficient appliances and light bulbs, etc. We calculate the best optimal emissions reduction pathway given each of these two different goals that. Theme data form population growth and greenhouse gasses. The impact of population growth and climate change on food. A demographically diverse world we live in a world of unprecedented demographic change. Pdf population growth and climate change researchgate.
Population dynamics and the drivers of climate change unfpa. Point out the data bank at the front of the classroom and explain that students will be analyzing pieces of data related to climate change, but that the data isnt just numbers its graphs, images, articles, and more. The impact of population growth and climate change on food security in africa. We are currently adding more than 80 million people a year to our global population. Besides the impacts of climate change, population growth is also expected to augment natural resources scarcity and food insecurity in africa godfray et al. Part 3 links population and climate change in the context of how growth, urbanization. Under middlerange projections of population growth, agricultural production loss and an increase in the prices of crops due to climate change will place an additional 90 to 125 million people in developing countries at risk of hunger by 2080. Population growth is the increase in the number of individuals in a population.