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Integrated assessment models generate climate change mitigation scenarios consistent with global temperature targets. To limit warming to 2 °C, cost-effective mitigation pathways rely on extensive deployments of CO2 removal (CDR) technologies, including multi-gigatonne yearly CDR from the atmosphere through bioenergy with carbon capture and storage (BECCS) and afforestation/reforestation. While these assumed CDR deployments keep ambitious temperature targets in reach, the associated rates of land-use transformation have not been evaluated. Here, we view implied integrated-assessment-model land-use conversion rates within a historical context. In scenarios with a likely chance of limiting warming to 2 °C in 2100, the rate of energy cropland expansion supporting BECCS proceeds at a median rate of 8.8 Mha yr−1 and 8.4% yr−1. This rate exceeds—by more than threefold—the observed expansion of soybean, the most rapidly expanding commodity crop. In some cases, mitigation scenarios include abrupt reversal of deforestation, paired with massive afforestation/reforestation. Historical land-use transformation rates do not represent an upper bound for future transformation rates. However, their stark contrast with modelled BECCS deployment rates implies challenges to explore in harnessing—or presuming the ready availability of—large-scale biomass-based CDR in the decades ahead. Reducing BECCS deployment to remain within these historical expansion rates would mean either the 2 °C target is missed or additional mitigation would need to occur elsewhere.

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Nature Sustainability
Authors
P. A. Turner
Christopher B. Field
David Lobell
D. L. Sanchez, K. J. Mach
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Online Event
 

Interested in learning more about the Ford Dorsey Master's Program in International Policy at Stanford University? Then please join us for an informational webinar on May 23, 2018 at 9:30am PST. We will be going over program specifics and answering any questions.

RSVP on Eventbrite - https://www.eventbrite.com/e/ford-dorsey-masters-program-in-internation…

Contact Email: 

 

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“When you see something wrong, don’t be a bystander,” Annan responded. “You are never too young to lead. Don’t let my generation tell you, ‘Shut up and wait your turn.’ If there’s something you feel that you can do something about, do it. Work across racial, religious and other lines. Don’t accept divisions you see in society,” said former United Nations (UN) Secretary-General Kofi Annan in conversation with CDDRL Mosbacher Director Francis Fukuyama. Read the article here and watch the video here.

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Interested in pursuing a Master’s degree in International Policy? Come check out our newly redesigned Ford Dorsey Master’s in International Policy (MIP) at FSI!

 

MIP is a two-year Master of Arts program that emphasizes the application of advanced analytical and quantitative methods to decision-making in international affairs. It is also offered as a coterminal degree here at Stanford. If you are interested in hearing more, please join us for our upcoming MIP Coterm Info Session:

 

What: MIP Coterm Info Session

Date: May 22, 2018

Time: 12:30 -1:15pm

Location: International Policy Studies Kitchen, Ground Floor, Encina Hall Central (616 Serra St.)

 

Please see more details about the program, as well as application information, on our website: http://ips.stanford.edu/.

 

International Policy Studies Kitchen, Ground Floor, Encina Hall Central (616 Serra St.)

Authors
Beth Duff-Brown
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Renowned economist Jeffrey Sachs launched an ambitious — some would say audacious — experiment back in 2005 in his quest to prove that we can end global poverty if we take a holistic, community-led approach to sustainable development.

The Millennium Villages Project targeted more than a dozen sub-Saharan villages and imposed an integrated approach to help these villages achieve the U.N. Millennium Development Goals to address poverty, health, gender equality, and disease.

Funded by World Bank loans, governments, and private contributions, the pilot wanted to see whether conditions would improve dramatically for the half-million residents of the villages in the 10 project sites by improving access to safe drinking water, primary education, basic health care, and other science-based interventions such as better seeds and fertilizer.

The results are in. And boy are they are mixed.

Some harsh critics say the MVP was a waste of hundreds of millions of dollars, the project was riddled with fundamental methodological errors, and there is little scientific evidence that the project attained its goals.

Others, such as Sachs himself in this Lancet Global Health perspective, say that while the outcomes on poverty were mixed and impacts on nutrition and education often inconclusive, “the lessons learned from the MVP are highly pertinent.”

Stanford Health Policy’s Eran Bendavid — asked to contribute a commentary about the endline evaluation of the project published online this month in The Lancet Global Health — falls somewhere between critic and advocate.

"The project, set up as a focused set of interventions implementing an important idea in international development about how to best help the poor, was a terrific opportunity for learning about how to reduce poverty and improve well-being,” Bendavid said.

But the MVP was not set up as a randomized field trial, nor was there any monitoring of what happened in any comparison areas to make sense of what the intervention had achieved.

“No comparison sites were selected either. That was a wasted opportunity,” he said. “The endline evaluation of the project does the best that can be done to eek some information from the limited opportunities for learning.”

Bendavid, an associate professor of medicine and an infectious diseases physician who focuses on global health, said the project invested about $120 per person per year for 50,000 people for 10 years. That’s about $600 million.

“The clearest evidence of benefits from this investment is improved maternal health-care and health outcomes,” he said.

The authors of the final evaluation tried to put a better spin on the net benefits.

 

 

“We found that impact estimates for 30 of 40 outcomes were significant and favored the project villages,” wrote the authors of The Millennium Villages Project: a retrospective, observational, endline evaluation.

“In particular, substantial effects were seen in agriculture and health, in which some of the outcomes were roughly one (standard deviation) better in the project villages than in the comparison villages,” they wrote. However, they added, “The project was estimated to have no significant impact on the consumption-based measures of poverty,” and impacts on nutrition and education outcomes were often inconclusive.

But when they averaged outcomes within categories, the authors — of whom Sachs was one — concluded that the project had significant favorable impacts on agriculture, nutrition, education, child health, maternal health, HIV and malaria, and water and sanitation.

In all, a third of the targets of the Millennium Development Goals were met in the project sites.

Bendavid concluded that the endline evaluation “marks an important chapter in our understanding of Africa’s meandering path towards health and economic development.” 

He noted that the project’s evaluation, which was done as well as possible given the difficulties of assessing its impact 10 years on, still failed to shed much light on the MVP’s approach as a method to bring an end to poverty. 

“This was such an important project,” Bendavid said. “We’ll never fully know where it succeeded and where it did not, but this evaluation is a welcome bookend to what we are likely to ever learn from that experience.”

Listen to a podcast with Bendavid.

 

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On April 13, the United States Institute of Peace hosted a panel discussion titled “Ending Civil Wars: How Can We Succeed with Limited Opportunities?” The session was moderated by the director of the U.S.-Asia Security Initiative, Ambassador Karl Eikenberry.

USIP recently posted video and audio-only recordings of the 90-minute session for public view. Watch/Listen here >>

The session focused on insights from “Civil Wars, Violence, and International Responses”, a project co-directed by Ambassador Eikenberry and FSI Senior Fellow Stephen Krasner. Through the efforts of 36 U.S. and international project participants (8 of whom were affiliated with FSI), the American Academy of Arts and Sciences dedicated two issues of its quarterly journal Daedalus to their writings (see below).

Joining Ambassador Eikenberry and Professor Krasner on the dais were Nancy Lidborg (President of USIP), Dr. Stephen Biddle (Professor, Georgetown University), Barry Posen (Professor, Massachusetts Institute of Technology), and Clear Lockhart (Director and Co-Founder of the Institute for State Effectiveness).


Related Publications:

Civil Wars & Global Disorder: Threats & Opportunities - Daedalus, Fall 2017

Ending Civil Wars: Constraints & Possibilities - Daedalus, Winter 2018

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The availability of climate model experiments under three alternative scenarios stabilizing at warming targets inspired by the COP21 agreements (a 1.5 ºC not exceed, a 1.5 ºC with overshoot and a 2.0ºC) makes it possible to assess future expected changes in global yields for two staple crops, wheat and maize. In this study an empirical model of the relation between crop yield anomalies and temperature and precipitation changes, with or without the inclusion of CO2 fertilization effects, is used to produce ensembles of time series of yield outcomes on a yearly basis over the course of the 21st century, for each scenario. The 21st century is divided into 10 year windows starting from 2020, within which the statistical significance and the magnitude of the differences in yield changes between pairs of scenarios are assessed, thus evaluating if, and when, benefits of mitigations appear, and how substantial they are. Additionally, a metric of extreme heat tailored to the individual crops (number of days during the growing season above a crop-specific threshold) is used to measure exposure to harmful temperatures under the different scenarios. If CO2 effects are not included, statistically significant differences in yields of both crops appear as early as the 2030s but the magnitude of the differences remains below 3% of the historical baseline in all cases until the second part of the century. In the later decades of the 21st century, differences remain small and eventually stop being statistically significant between the two scenarios stabilizing at 1.5 ºC, while differences between these two lower scenarios and the 2.0ºC scenario grow to about 4%. The inclusion of CO2 effects erases all significant benefits of mitigation for wheat, while the significance of differences is maintained for maize yields between the higher and the two lower scenarios, albeit with smaller benefits in magnitude. Changes in extremes are significant within each of the scenarios but the differences between any pair of them, even by the end of the century are only on the order of a few days per growing season, and these small changes appear limited to a few localized areas of the growing regions. These results seem to suggest that for globally averaged yields of these two grains the lower targets put forward by the Paris agreement does not change substantially the expected impacts on yields that are caused by warming temperatures under the pre-existing 2.0ºC target.

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Environmental Research Letters
Authors
Claudia Tebaldi
David Lobell
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Wednesday, April 18, 2018

1:30 – 2:30pm

Encina Hall, Philippines Room

FSI and the Ford Dorsey IPS program will be hosting Mercy Corps as they visit campus to speak about their Global Internship Program.

The Mercy Corps Global Internship Program offers exploration into future careers in international relief and development while supporting our beneficiaries in their local communities in 25 countries around the world. Their internships revolve around a particularly demanding mission - to help people on the ground turn the crises they confront into the opportunities they deserve. Driven by local needs, our programs provide communities in the world’s most challenging places with the tools and support they need to transform their lives.

Mercy Corps is an international relief and development organization working in over 40 countries worldwide helping people build secure, productive and just communities. From poverty and malnutrition to natural disasters and global warming, Mercy Corps sees an opportunity to create transformative change. In crisis, we believe in the power of human potential. Mercy Corps connects people to the resources they need to build better, stronger lives.

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