Connecting the Dots conference website
Stanford experts from a range of disciplines discuss the interconnections and interactions among humanity's needs for and use of water, food, energy, and environment. Drawing on their own research, the speakers illustrate and evaluate some of the ways in which decisions in one resource area can lead to trade-offs or co-benefits in others. Participants examine sustainable freshwater resources and uses in Africa, Asia, and the arid West.
Panel: Africa - Water, Nutrition, Health and Poverty
China: Water, Food, Climate, and Policy
Frances C. Arrillaga Alumni Center
In this session of the Shorenstein APARC Corporate Affiliate Visiting Fellows Research Presentations, the following will be presented:
Yasunori Kakemizu, "Strategy of CATV in the Competitive TV Market: Open vs. Closed Models"
After prospering for more than a half-century in the United States, the cable industry is taking on a new competitor, Over-The-Top providers (OTT). OTT providers are a product of the information technology revolution that emerged from the invention of Internet protocol of the late 20th century. In his research presentation, Kakemizu tries to answer the question: What is the strategy of the cable industry in the United States and what will happen to it in the near future? Kakemizu analyzes the current threat and opportunity facing cable television companies, focusing on the strategies against OTT, such as Netflix and Hulu.
Hideaki Koda, "Driving the Electric Vehicle Forward: Reshaping Car Sharing with EV and ICT"
Should the all-electric vehicle challenge the traditional car head-on in the mainstream market? The answer may be "no" if you look back on the history of disruptive innovations. An innovative technology at its dawn often succeeds first in a smaller, untapped market where its strengths shine and its weaknesses are shadowed (or even turned into strengths). It then enters the mainstream market over time by achieving more maturity, as typically shown in the computer market. Then where is the market for the electric vehicle? It might be car sharing, which is thought to be a potentially large market. Koda discusses how to combine electric vehicles and car sharing with information and communications technology (e.g. Big Data processing) to achieve a win-win solution for all by taking advantage of the unique characteristics of the electric vehicle.
Haiming Li, "Competing Strategies for China's Large Commercial Banks"
Competing strategies are critical to China's large commercial banks, as they determine future direction of development for these banks. Research shows that following five strategies, namely a strategy for lead changes, a strategy for globalization, a strategy for diversification, a strategy for systematic risk management, as well as a strategy for establishing a decision-making support system, need to be adapted. Coordinated implementation of these strategies will enhance the competitiveness of China's large commercial banks both home and abroad.
Yoshimasa Waseda, "Nantotechnolgoy for Fuel Cells: The Impact and Analysis of the Status Using Patent Information"
Judging from the need to reduce increasing dangers of future global climate change, clean energy has become more important and is a key issue for future development. Fuel cells are a candidate for achieving clean energy in the future although they currently have some disadvantages. Many researchers study the application of nanotechnology for fuel cells to solve these disadvantages using the unique phenomena of nanomaterials. In this presentation, Waseda discusses the impact of nanotechnology for fuel cells and analyzes the status of each region using patent information.
Philippines Conference Room
Climate change has the potential to be a source of increased variability if crops are more frequently exposed to damaging weather conditions. Yield variability could respond to a shift in the frequency of extreme events to which crops are susceptible, or if weather becomes more variable. Here we focus on the United States, which produces about 40% of the world’s maize, much of it in areas that are expected to see increased interannual variability in temperature. We combine a statistical crop model based on historical climate and yield data for 1950–2005 with temperature and precipitation projections from 15 different global circulation models. Holding current growing area constant, aggregate yields are projected to decrease by an average of 18% by 2030–2050 relative to 1980–2000 while the coefficient of variation of yield increases by an average of 47%. Projections from 13 out of 15 climate models result in an aggregate increase in national yield coefficient of variation, indicating that maize yields are likely to become more volatile in this key growing region without effective adaptation responses. Rising CO2 could partially dampen this increase in variability through improved water use efficiency in dry years, but we expect any interactions between CO2 and temperature or precipitation to have little effect on mean yield changes.
A new study out of Stanford University finds extreme temperatures are cutting wheat yields by 20 to as much as 50 percent, a finding worse than previously estimated. FSE center fellow David Lobell and his colleagues used nine years of satellite measurements of wheat growth in northern India's breadbasket, the Indo-Gangetic Plains, to analyze rates of wheat ageing after exposure to temperatures higher than 34 degrees Celsius.
Extreme heat beyond the plant's tolerance zone damages photosynthetic cells. This causes wheat to age faster, reducing the length of the growing season and the amount and size of the wheat grains. The team's crop models found that a two degree increase in temperatures would reduce the growing season by nine days, yielding 20 percent less wheat.
As the world's second-biggest crop, lost wheat yields may become a major threat to global food security. Especially given the projection that global yields need to rise 50 percent by 2050 to feed a growing, more affluent population. The results imply that warming presents an even greater challenge to wheat than previous studies estimated, and that the effectiveness of adaptations will depend on how well they reduce crop sensitivity to very hot days, particularly in areas of the world such as India already experiencing warming conditions.
Stanford University's Center on Food Security and the Environment (FSE) takes a global and multifaceted approach to issues of food security by tackling both the supply and demand side of the equation. By recognizing that food security issues in the 21st century are intimately tied to climate change, FSE looks at the root causes of our problems and helps to create sustainable solutions to feed those in need around the world.
The demand for food, feed and fuel will continue to rise as the world population grows and becomes more affluent. Meeting this demand will be especially challenging because of global warming, say climate experts, and the impacts of climate variability could make food markets even more volatile, adds Rosamond L. Naylor, professor of environmental Earth system science at Stanford University.
Naylor led a symposium on the compound effects of climate change and climate variability on food security at the annual meeting of the American Association for the Advancement of Science (AAAS) February 17th.
The symposium focused on two examples of climate variability: changes in growing-season temperature extremes beyond the range observed in the historical record, and changes in the El Niño–Southern Oscillation (ENSO) phenomenon – the most energetic form of year-to-year climate variability known.
Panelist David S. Battisti, professor of atmospheric sciences at the University of Washington, addressed key challenges in assessing the impact of extreme temperatures in coming decades. According to Battisti, global warming models forcast that temperature variability will increase as the average temperature warms, greatly compounding the likelihood of extreme heat and droughts. Unfortunately, these models typically have too much temperature variability in their simulations of present-day climate, he said. Battisti's talk focused on the cause of these modeling biases and their impact on climate forecasting.
Panelist Daniel J. Vimont, associate professor of atmospheric and oceanic sciences at the University of Wisconsin-Madison, discussed the impacts of El Niño in a warmer world. ENSO impacts can be severe in regions in and surrounding the tropical Pacific, and can extend around the globe, he said. ENSO variability – its return period and intensity – are very sensitive to changes in mean conditions in the tropical Pacific, he added, but these conditions are notoriously difficult to simulate using the present generation of global climate models. Vimont presented results from the linear ocean atmosphere model (LOAM), a new scientific tool for estimating global warming's impact on ENSO variability.
Naylor addressed the impacts of climate on global markets for major staple commodities, which are already under pressure from increased population-, income-, and energy-driven demands. She outlined the potential effects of climate variability on regional trade patterns, price volatility, policy responses and human welfare.
Mark Shwartz is the Communications/Writer at Precourt Institute for Energy at Stanford University.
An important source of uncertainty in anticipating the effects of climate change on agriculture is limited understanding of crop responses to extremely high temperatures. This uncertainty partly reflects the relative lack of observations of crop behaviour in farmers’ fields under extreme heat. We used nine years of satellite measurements of wheat growth in northern India to monitor rates of wheat senescence following exposure to temperatures greater than 34 °C. We detect a statistically significant acceleration of senescence from extreme heat, above and beyond the effects of increased average temperatures. Simulations with two commonly used process-based crop models indicate that existing models underestimate the effects of heat on senescence. As the onset of senescence is an important limit to grain filling, and therefore grain yields, crop models probably underestimate yield losses for +2 °C by as much as 50% for some sowing dates. These results imply that warming presents an even greater challenge to wheat than implied by previous modelling studies, and that the effectiveness of adaptations will depend on how well they reduce crop sensitivity to very hot days.