This valuable book summarizes recent research by experts from both the natural and social sciences on the effects of population growth on land use. It is a useful introduction to a field in which little quantitative research has been conducted and in which there is a great deal of public controversy. The book includes case studies of African, Asian, and Latin American countries that demonstrate the varied effects of population growth on land use. Several general chapters address the following timely questions: What is meant by land use change? Why are ecological research and population studies so different? What are the implications for sustainable growth in agricultural production? Although much work remains to be done in quantifying the causal connections between demographic and land use changes, this book provides important insights into those connections, and it should stimulate more work in this area.

This paper combines pre-pandemic face-to-face survey data with follow up phone surveys collected in April-May 2020 to quantify the overall and differential impacts of COVID-19 on household food security, labor market participation and local food prices in Nigeria. We exploit spatial variation in exposure to COVID-19 related infections and lockdown measures along with temporal differences in our outcomes of interest using a difference-in-difference approach. We find that those households exposed to higher COVID-19 cases or mobility lockdowns experience a significant increase in measures of food insecurity. Examining possible transmission channels for this effect, we find that COVID-19 significantly reduces labor market participation and increases food prices. We find that impacts differ by economic activities and households. For instance, lockdown measures increased households' experience of food insecurity by 12 percentage points and reduced the probability of participation in non-farm business activities by 13 percentage points. These lockdown measures have smaller impacts on wage-related activities and farming activities. In terms of food security, households relying on non-farm businesses, poorer households, those with school-aged children, and those living in remote and conflicted-affected zones have experienced relatively larger deteriorations in food insecurity. These findings can help inform immediate and medium-term policy responses, including social protection policies aiming at ameliorating the impacts of the pandemic, as well as guide targeting strategies of governments and international donor agencies by identifying the most impacted sub-populations.

The Government’s policy measures such as travel restrictions, lockdowns, and restrictions on economic and social activities, aimed at curbing the spread of COVID-19, had affected the livelihoods and food security of smallholders in Nigeria. Using data collected from sample households from four Nigerian states, this study investigated the effects of COVID-19 pandemic policies on the incomes, employment, and food security situation of smallholder farming households. Results show that 88 percent of the households reported that they lost about 50 percent of their income due to the pandemic. As a result, about 66 percent of respondents reported they reduced food consumption. Travel and movement restrictions caused disruptions in agricultural activities and supply chains, as 29 percent of respondents reported planting fewer crops, 24 percent reduced cropping area, and 24 percent reduced fertilizer application. In terms of household’s food security, results show that COVID-19 significantly worsened the food security situation of many households in Nigeria, especially poorer households. More than 80 percent of respondents worried about not having enough food and 77 percent ate less food than they thought they should. Survey households also reported a significant reduction of consumption of proteins (eggs, meat, and dairy products) and fruits since the pandemic struck. Increases in food prices are felt by most households (85 percent). We suggest three key policy priorities: support vulnerable households to mitigate the impacts of income loss through cash transfer or improved credit access; interventions to improve agricultural inputs supply chains to ease the pandemic’s impact on agricultural production; and support food insecure households through direct food distribution.

" This monograph describes how a failed state in 2030 may impact the United States and the global economy. It also identifies critical capabilities and technologies the US Air Force should have to respond to a failed state, especially one of vital interest to the United States and one on the cusp of a civil war. Nation-states can fail for a myriad of reasons: cultural or religious conflict, a broken social contract between the government and the governed, a catastrophic natural disaster, financial collapse, war and so forth. Nigeria with its vast oil wealth, large population, and strategic position in Africa and the global economy can, if it fails disproportionately affect the United States and the global economy. Nigeria, like many nations in Africa, gained independence from the United Kingdom in 1960. It is the most populous country in Africa and will have nearly 250 million people by 2030. In its relatively short modern history, Nigeria has survived five military coups as well as separatist and religious wars, is mired in an active armed insurgency, is suffering from disastrous ecological conditions in its Niger Delta region, and is fighting one of the modern world's worst legacies of political and economic corruption. A nation with more than 350 ethnic groups, 250 languages, and three distinct religious affiliations--Christian, Islamic, and animist Nigeria's 135 million people today are anything but homogenous. Of Nigeria's 36 states, 12 are Islamic and under the strong and growing influence of the Sokoto caliphate. While religious and ethnic violence are commonplace, the federal government has managed to strike a tenuous balance among the disparate religious and ethnic factions. With such demographics, Nigeria's failure would be akin to a piece of fine china dropped on a tile floor--it would simply shatter into potentially hundreds of pieces."--DTIC abstract.