A new study published today in the Proceedings of the National Academy of Sciences by FSE researchers finds smallholder irrigation has great potential to reduce hunger, raise incomes, and improve development prospects in an area of the world greatly in need of these advancements.

But even the cheapest pumps can still be prohibitively expensive without financing.

Distributed irrigation systems are those in which the water access (via pump or human power), distribution (furrow, watering can, sprinkler, drip lines, etc.), and use all occur at or near the same location.

These systems have the potential to use water more productively, improve nutritional outcomes and rural development, and narrow the income disparities that permit widespread hunger to persist despite economic advancement.

Only 4 percent of agricultural land in sub-Saharan Africa is currently irrigated. 

"Success stories can be found where distributed systems are used in a cooperative setting, permitting the sharing of knowledge, risk, credit and marketing as we've seen in our solar market garden project in Benin," said lead author Jennifer Burney

Moving forward development communities and sub-Saharan African governments need a better understanding of present water resources and how they will be affected by climate change.

"Farmers need access to financial services—credit and insurance—appropriate for a range of production systems," said co-author Rosamond L. Naylor. "Investments should start at a smaller scale, with thorough project evaluation, before scaling up."

FSE continues to contribute to these evaluations and added eight new villages to our project in Benin last year.

“Do we have to accept deforestation to feed the world?”

That was one of the provocative questions that Stanford Woods Institute Senior Fellow and land use expert Eric Lambin posed during a recent presentation of research with far-reaching implications for policymakers, businesses and consumers. Among the findings Lambin discussed with Stanford students and faculty during a Stanford Department of Environmental Earth System Science seminar: There is much less potentially available cropland (PAC) globally than previous estimates have suggested. Perhaps surprisingly, however, we don’t need to clear more land, including forests, to plant hunger-alleviating crops, Lambin said.

Previous PAC estimates by international organizations such as the World Bank have been consistently too high, according to Lambin giving decision-makers “carte blanche” to approve a variety of uses for large tracts of land.

By 2030, the additional land worldwide that will be needed for urban expansion, tree plantations and biofuel crops will equal the additional land that will likely be devoted to food crops, according to Lambin. This rapid transformation of the face of the planet makes it essential to get a handle on realistic PAC estimates. To do so, Lambin took a “bottom-up approach” that incorporated factors such as soil quality, land use restrictions, labor availability and occupation by smallholders. Lambin also considered trade-offs such as the carbon stocks lost and natural habitat destroyed by land conversion.

Lambin’s resulting PAC estimates in regions ranging from Argentina to Russia are, on average, only a third of other generally accepted estimates. Along the way, Lambin discovered some surprises. For example, what initially looked like good news – the fact that some countries have gone from net deforestation to net reforestation in recent years – turned out to be less hopeful. Lambin found that most countries in the developed and developing worlds that have stopped cutting down their forests have increased their imports of timber and wood products, often from tropical countries. This “outsourcing of deforestation” is one of several troubling global land trends.

On the other hand, Lambin pointed out that production of crops essential to alleviating hunger have increased in recent years, but their overall land use has not, due to more efficient and intensive agricultural methods. This net gain contradicts assertions that more land, including forests, needs to be cleared for farming in order to alleviate hunger, he said.

The real culprit for such land conversion, according to Lambin, is growing adoption of a Western diet heavy with meat, sugar and vegetable oils. Deforestation for agriculture is often driven by multinational companies that cultivate in tropical regions to export fatty and oily food products to urban markets in rich countries and emerging economies. These companies control a majority of global food supply chains and, in turn, local land use decisions. “Globalization has reshaped land governance,” Lambin said.

Globalization is not a bogeyman, though. In fact, Lambin said, it can be an engine for progress on these issues by allowing for new forms of market-based governance that effectively promote sustainable land use. Market mechanisms such as eco-certification labels and nongovernmental campaigns can promote and incentivize responsible land use, he noted, pointing to coffee farmers he studied with School of Earth Sciences Research Associate Ximena Rueda. The farmers increased tree cover on their plantations with the extra profit they reaped from eco-certified beans.

Rod Ewing, one of the nation’s leading experts on nuclear materials, has been named the inaugural Frank Stanton Professor in Nuclear Security at the Center for International Security and Cooperation.

Ewing has written extensively on issues related to nuclear waste management and is Chairman of the U.S. Nuclear Waste Technical Review Board. He will have a joint appointment as Professor of Geological and Environmental Sciences in the School of Earth Sciences and as a Senior Fellow at CISAC. He will begin his new position at Stanford in January.

“Given the very long and distinguished history of the Stanton Foundation’s involvement in issues of nuclear security, this appointment provides me with a unique opportunity to blend science with security policy,” Ewing said.

The endowed chair was recently established with a $5 million gift to CISAC from the Stanton Foundation to aid the center in its longstanding mission to build a safer world through rigorous policy research in nuclear security.

Former CBS president Frank Stanton established the foundation, which also funds CISAC’s Stanton Nuclear Security Fellowships for pre- and post-doctoral students and junior faculty who are studying policy-relevant issues related to nuclear security.

Ewing, currently the Edward H. Kraus Distinguished Professor in the Department of Earth & Environmental Sciences at the University of Michigan, will conduct research on nuclear security and energy and related issues relevant to international arms control policy when he arrives at Stanford.

He will teach a course at CISAC related to nuclear security issues. In his research at Stanford’s School of Earth Sciences, Ewing will focus on the response of materials to extreme environments and the demand for strategic minerals for use in the development of sustainable energy technologies.

“I am particularly interested in understanding the connections between nuclear energy, its environmental impact and proliferation of nuclear weapons,” he said “This appointment gives me the freedom to pursue teaching and research in this area across disciplinary boundaries.”

Tino Cuéllar, CISAC’s co-director and next director of its parent organization, the Freeman Spogli Institute for International Studies, said Ewing’s appointment as the inaugural Stanton chair would help CISAC and FSI remain at the forefront of global efforts to understand nuclear energy and its enormous consequences to civilization.

“How societies throughout the world handle nuclear security challenges will have a profound impact on our future, and problems involving the management and security of nuclear waste will in turn greatly affect nuclear security” Cuéllar said.

Ewing’s appointment continues a tradition at CISAC of blending faculty in the sciences and social sciences. The center’s co-founders believed political science and the natural sciences are essential components of global security.

Stanton himself became actively engaged in international security issues in 1954 when President Dwight D. Eisenhower appointed him to a committee to develop the first comprehensive plan for the nation’s survival following a nuclear attack. His connection to Stanford began as a founding member and chair of Stanford’s Center for Advanced Studies in the Behavioral Sciences in 1953 and a university trustee from 1953 to 1971.

 Read More About Ewing Here