E4: Adaptation to Global Water Shortages

Una serie de proyectos han surgido para redesarrollar las céntricas áreas que rodean a este río.
El temor es que los nuevos parques produzcan una "gentrificación verde."
Whether they are researching the pace of Alaskan glacier melt or measuring the impact of Arctic sea ice changes on our our weather, climate scientists go to some of the most remote areas on Earth to help us understand our environment.
Environmentalists say this gas boon threatens water supplies and pollutes air.
Whether they are researching the pace of Alaskan glacier melt or measuring the impact of Arctic sea ice changes on our our weather, climate scientists go to some of the most remote areas on Earth to help us understand our environment.
Environmentalists say this gas boon threatens water supplies and pollutes air.
Whether they are researching the pace of Alaskan glacier melt or measuring the impact of Arctic sea ice changes on our our weather, climate scientists go to some of the most remote areas on Earth to help us understand our environment.
Environmentalists say this gas boon threatens water supplies and pollutes air.
Whether they are researching the pace of Alaskan glacier melt or measuring the impact of Arctic sea ice changes on our our weather, climate scientists go to some of the most remote areas on Earth to help us understand our environment.
Environmentalists say this gas boon threatens water supplies and pollutes air.

BLOG ROUND-UP: Can Sacramento Valley reservoirs adapt to flooding with a warmer climate?; What could be the next big thing in infrastructure?; The changing face of water leadership; Secrets of salmon success in the Sac Valley; and more …

BLOG ROUND-UP: Can Sacramento Valley reservoirs adapt to flooding with a warmer climate?
… ” Read more from the California Water Blog here: Can Sacramento Valley reservoirs adapt to flooding with a warmer climate?
the Colorado River Aqueduct, which moves water from the Colorado River to the Metropolitan Water District service area in Southern California.
Also, desalination and reclamation plants are used to address water supply and water quality needs.
The changing face of water leadership: Lori Pottinger writes, “California’s water managers face many challenges—from a changing climate to a growing population.
… ” Read more from the PPIC Blog here: The changing face of water leadership Secrets of salmon success: How lessons learned on Butte Creek can help recover fish in the Sacramento Valley: Jacob Katz writes, “It was great to be on the banks of Butte Creek last week celebrating the success of a collaborative effort to create a working landscape for fish, birds and people.
… ” Read more from the NCWA blog here: Secrets of salmon success: How lessons learned on Butte Creek can help recover fish in the Sacramento Valley Delta status end of June 2017: Tom Cannon writes, “Despite the fact that it is a record wet year with abundant spring snowmelt, early summer conditions in the Delta in 2017 are not looking good.
… ” Read more from the California Fisheries blog here: Delta status end of June 2017 Salton Sea fish, birds in jeopardy even with more mitigation water: John Fleck writes, “One suggested short term tool to deal with the shrinking Salton Sea is to continue putting in more water.
(It’s hairy and I won’t try to explain the whole mess here, read my book or, if you don’t have as much time, read the Desert Sun’s recent opus, which actually does a better job on this than my book, but you should still read my book.)
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Adapting to climate change a major challenge for forests

Adapting to climate change a major challenge for forests.
In Switzerland, temperatures have already risen by around 1.9°C since the beginning of industrialization.
Even keeping global warming down to the 1.5-2°C target set by the Paris Agreement on climate change will yield a further increase of 1-2°C.
For the Swiss forests, this warming trend will involve vegetation zones shifting 500‑700 metres higher in altitude.
Foresters and forest owners should already tailor the management of their forests to these future conditions.
Safeguarding forest functions against the backdrop of climate change The research results show that while forests can adapt to climate change to a certain extent, they are unlikely to be capable of continuing to perform their functions — so natural-hazard protection, the increasingly vital production of timber as a renewable raw material and energy source or their recreational function — everywhere to the extent we have become used to.
To avert the loss of such functions, the research programme devised various management strategies adapted to changing climatic conditions.
In particular, they result in a greater increase in the diversity of the tree species.
These conditions are changing from site to site and must be viewed in the context of the management of the forest.
In this way, for example, areas in high-resolution site maps can be shown where the climate-sensitive Norway spruce can continue to thrive (box 2).

Quick read: Drought hits Midwest while cattle producers find ways to adapt

Quick read: Drought hits Midwest while cattle producers find ways to adapt.
As of Thursday, most of northeastern South Dakota is considered to be in a moderate drought, according to the drought monitor index.
"So it’s a pretty impressive Top 10 stat there.
That kind of puts into perspective how dry this month has been.
North Dakota is getting pretty bad too," he said.
"Meanwhile, across eastern South Dakota, they’re much above average and into Minnesota.
So it’s a very tight radiant there."
Lueck said that, historically, the area has about 7.25 inches of precipitation by now.
So we are 4 inches below average," he said.
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Computer models find ancient solutions to modern climate problems

Their work, which links ancient climate and archaeological data, could help modern communities identify new crops and other adaptive strategies when threatened by drought, extreme weather and other environmental challenges.
In a new paper in the Proceedings of the National Academy of Sciences, Jade d’Alpoim Guedes, assistant professor of anthropology, and WSU colleagues Stefani Crabtree, Kyle Bocinsky and Tim Kohler examine how recent advances in computational modeling are reshaping the field of archaeology.
"Computational modeling gives us an unprecedented ability to identify what worked for these people and what didn’t."
He launched the Village Ecodynamics Project in 2001 to simulate how virtual Pueblo Indian families, living on computer-generated and geographically accurate landscapes, likely would have responded to changes in specific variables like precipitation, population size and resource depletion.
By comparing the results of agent-based models against real archeological evidence, anthropologists can identify past conditions and circumstances that led different civilizations around the world into periods of growth and decline.
‘Video game’ plays out to logical conclusion Agent-based modeling is also used to explore the impact humans can have on their environment during periods of climate change.
"It enables us to not only predict the effectiveness of growing different crops and other adaptations but also how human societies can evolve and impact their environment."
Bocinsky and d’Alpoim Guedes are using the modeling technique to identify little-used or in some cases completely forgotten crops that could be useful in areas where warmer weather, drought and disease impact food supply.
"Cultivating Hopi corn and other traditional, drought-resistant crops could become crucial for human survival in other places impacted by climate change."
"These millets are on the verge of becoming forgotten crops," d’Alpoim Guedes said.

Adopt or Adapt: Sanitation Technology Choices in Urbanizing Malawi

Adopt or Adapt: Sanitation Technology Choices in Urbanizing Malawi.
Adopt or Adapt: Sanitation Technology Choices in Urbanizing Malawi.
PLoS ONE 11(8): 2016.
Authors: Richard M. Chunga1, Jeroen H. J. Ensink, Marion W. Jenkins, Joe Brown This paper presents the results of a mixed-methods study examining adaptation strategies that property owners in low-income, rapidly urbanizing areas in Malawi adopt to address the limitations of pit latrines, the most common method of disposing human excreta.
A particular challenge is lack of space for constructing new latrines as population density increases: traditional practice has been to cap full pits and simply move to a new site, but increasing demands on space require new approaches to extend the service life of latrines.
In this context, we collected data on sanitation technology choices from January to September 2013 through 48 in-depth interviews and a stated preference survey targeting 1,300 property owners from 27 low-income urban areas.
Results showed that property owners with concern about space for replacing pit latrines were 1.8 times more likely to select pit emptying service over the construction of new pit latrines with a slab floor (p = 0.02) but there was no significant association between concern about space for replacing pit latrines and intention to adopt locally promoted, novel sanitation technology known as ecological sanitation (ecosan).
Property owners preferred to adapt existing, known technology by constructing replacement pit latrines on old pit latrine locations, reducing the frequency of replacing pit latrines, or via emptying pit latrines when full.
This study highlights potential challenges to adoption of wholly new sanitation technologies, even when they present clear advantages to end users.
To scale, alternative sanitation technologies for rapidly urbanising cities should offer clear advantages, be affordable, be easy to use when shared among multiple households, and their design should be informed by existing adaptation strategies and local knowledge.

Simultaneous water, nitrogen use can enhance sustainability

Researchers from Universidad Politécnica de Madrid have studied diverse techniques to enhance the water- and nitrogen-use efficiency in cropping systems.
The results of the study carried out by two researchers from the Research Group on Agricultural Systems at Universidad Politécnica de Madrid show that management practices oriented towards reducing nitrogen losses and maintaining farm productivity should rely on optimizing nitrogen and water inputs at the same time.
These two elements have a fundamental effect on food sovereignty of many regions and on the reduction of the gap between the potential food and the actual food produced in the world.
Thus, the practices that seek to improve both efficiencies simultaneously are more successful than those that aim to optimize each element separately.
This study carried out by Miguel Quemada and José Luis Gabriel, researchers from Universidad Politécnica de Madrid, has assessed seven practices to improve both elements at the same time in cropping systems.
Firstly, when there is crop water deficit the use of nitrogen has to be adjusted to the actual demand of the stressed crop since the plant will grow only as far as the most limiting factor allows it (water in this case), thus the rest of nitrogen remains on the soil ready to disappear from the system.
Thirdly, researchers suggest the use of fertigation that consists in the application of dissolved nutrients into irrigation water, this technique has a great potential to adapt the punctual demand of water and nitrogen per plant.
Soil mulching is the fourth technique suggested in this study.
Besides, soil mulching can favor the conditions to achieve a higher mineralization of soil nitrogen and it can also increase water infiltration reducing the loss of both water and nitrogen caused by soil erosion.
Finally, the seventh practice studied is the monitoring of water and nitrogen availability by using remote and proximity sensors.