Potential impacts of global warming on water resources in southern California

2003 ◽  
Vol 47 (7-8) ◽  
pp. 165-168 ◽  
Author(s):  
M. Beuhler
Keyword(s):  
Global Warming ◽  
Surface Water ◽  
Water Resources ◽  
Southern California ◽  
Salt Water ◽  
Scenario Planning ◽  
Potential Range ◽  
Water Supplies ◽  
Sea Levels ◽  
Rising Sea Levels

Global warming will have a significant impact on water resources within the 20 to 30-year planning period of many water projects. Arid and semi-arid regions such as Southern California are especially vulnerable to anticipated negative impacts of global warming on water resources. Long-range water facility planning must consider global climate change in the recommended mix of new facilities needed to meet future water requirements. The generally accepted impacts of global warming include increased temperature, rising sea levels, more frequent and severe floods and droughts, and a shift from snowfall to rain. Precipitation changes are more difficult to predict. For Southern California, these impacts will be especially severe on surface water supplies. Additionally, rising sea levels will exacerbate salt-water intrusion into freshwater and impact the quality of surface water supplies. Integrated water resources planning is emerging as a tool to develop water supplies and demand management strategies that are less vulnerable to the impacts of global warming. These tools include water conservation, reclamation, conjunctive use of surface and groundwater and desalination of brackish water and possibly seawater. Additionally, planning for future water needs should include explicit consideration of the potential range of global warming impacts through techniques such as scenario planning.

scholarly journals Effects of climate change on spatiotemporal patterns of tropical cyclone tracks and their implications for coastal agriculture in Myanmar

2021 ◽  
Author(s):  
Akira Hirano
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Considerable Increase ◽  
Hot Spot ◽  
Coastal Region ◽  
Storm Surges ◽  
Coastal Areas ◽  
Spatiotemporal Patterns ◽  
Sea Levels ◽  
Rising Sea Levels

AbstractImportant aspects for understanding the effects of climate change on tropical cyclones (TCs) are the frequency of TCs and their tracking patterns. Coastal areas are increasingly threatened by rising sea levels and associated storm surges brought on by TCs. Rice production in Myanmar relies strongly on low-lying coastal areas. This study aims to provide insights into the effects of global warming on TCs and the implications for sustainable development in vulnerable coastal areas in Myanmar. Using TC records from the International Best Track Archive for Climate Stewardship dataset during the 30-year period from 1983 to 2012, a hot spot analysis based on Getis-Ord (Gi*) statistics was conducted to identify the spatiotemporal patterns of TC tracks along the coast of Myanmar. The results revealed notable changes in some areas along the central to southern coasts during the study period. These included a considerable increase in TC tracks (p value < 0.01) near the Ayeyarwady Delta coast, otherwise known as “the rice bowl” of the nation. This finding aligns with trends in published studies and reinforced the observed trends with spatial statistics. With the intensification of TCs due to global warming, such a significant increase in TC experiences near the major rice-producing coastal region raises concerns about future agricultural sustainability.

scholarly journals INTRODUCTION: SPECIAL ISSUE ON ‘MACROECONOMICS OF CLIMATE CHANGE’

2021 ◽  
Vol 258 ◽  
pp. 9-11
Author(s):  
Dawn Holland ◽  
Hande Kucuk ◽  
Miguel León-Ledesma
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Paris Agreement ◽  
Extreme Temperatures ◽  
Special Issue ◽  
Special Report ◽  
Sea Levels ◽  
The World ◽  
Human Cost ◽  
Rising Sea Levels

Climate change is one of the most serious risks facing humanity. Temperature rises can lead to catastrophic climate and natural events that threaten livelihoods. From rising sea levels to flooding, bush fires, extreme temperatures and droughts, the economic and human cost is too large to ignore. More than 190 world leaders got together in Glasgow during November 2021 at the UN’s COP26 climate change summit to discuss progress on the Paris Agreement (COP21) and to agree on new measures to limit global warming. In Paris, countries agreed to limit global warming to well below 2° and aim for 1.5° as well as to adapt to the impacts of a changing climate and raise the necessary funding to deliver on these aims. However, actions to date were not nearly enough as highlighted by the IPCC (2018) special report. The world is still on track to reach warming above 3° by 2100. As evident from figure 1, global temperatures have been on a steadily increasing path since the start of the 20th century and this process has substantially accelerated since the beginning of the 1980s. This has been unevenly distributed, with temperatures in the Northern hemisphere being a full 1°C higher than for the 1961–1990 average, whilst temperatures in the Southern hemisphere have increased by almost 0.5°C.

scholarly journals Storiation: Holding the World

2021 ◽  
pp. 141-178
Author(s):  
Jonathan Pugh ◽  
David Chandler
Keyword(s):  
Global Warming ◽  
Human Nature ◽  
Indigenous Studies ◽  
Nuclear Radiation ◽  
Sea Levels ◽  
Kamau Brathwaite ◽  
Waste Production ◽  
The World ◽  
Rising Sea Levels ◽  
Key Sites

In Chapter 5, the authors give shape to an approach called Storiation. Central to Storiation is registering the ongoing afterlives, hauntings and effects of such significant forces as colonialism, modernity, global warming, nuclear radiation, rising sea levels, and waste production; where islands and island cultures regularly emerge as important sites for investigation. What distinguishes the Storiation analytic is the holding together of entities and effects, registered through islands and islander lives, intra-actions and effects. For authors like Timothy Morton the (island) future then becomes entangled with the past as the ‘afterlife’ of relational effects continue to reverberate in ‘strange’, ‘weird’ or ‘quantum’ ways. The chapter examines how the analytic of Storiation is today being widely developed in Anthropocene philosophy, critical Black and Indigenous Studies which all increasing turn to engage islands as key sites of relational entanglements and associated island scholars and literatures. Of particular importance is the work of the Barbadian writer Kamau Brathwaite. Brathwaite’s onto-epistemology of ‘tidalectics’ profoundly disrupts mainland, continental and modern frameworks of space-time, and binaries of human/nature. In Tiffany Lethabo King’s Storiations of Black and Indigenous life, she employs such methods as ‘critical fabulation’ and ‘speculative bricolage’ in order to hold together the traces, ghosts and afterlives of colonialism embodied and constitutive of the present. Thus, the chapter charts Storiations of the differentiating powers of colonialism, of the emergence of tidalectic psychologies living on in the wake, of island dances, Vodou loa and shamanistic practices, of species long extinct, of the consumerisms that haunt islands in strange ways.

scholarly journals Wallace-Wells, David. A Terra Inabitável: uma história do futuro. 1ª ed. São Paulo: Companhia das Letras, 2019, 374p. ISSN: 978-85-359-3239-3

2020 ◽  
Vol 11 ◽  
pp. e50713
Author(s):  
Victor De Matos Nascimento
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Sao Paulo ◽  
São Paulo ◽  
Global Level ◽  
Sea Levels ◽  
Guiding Principle ◽  
Rising Sea Levels

A obra contribui ao trazer um panorama que foca em questões centrais da mudança climática, como o aquecimento global, o aumento do nível dos oceanos e colapsos sociais. O eixo condutor da narrativa é a premissa de que a mudança climática é pior do que se imagina e é um fenômeno que não se pode evitar. O livro mobiliza uma série de eventos que têm ocorrido no planeta para ressaltar a necessidade urgente de ações em âmbito global para se evitar o agravamento deste problema.Palavras-chave: Mudança Climática; Aquecimento Global; Política Internacional.ABSTRACTThe book contributes by bringing a panorama that focuses on central issues of climate change, such as global warming, rising sea levels and social collapses. The guiding principle of the narrative is the premise that climate change is worse than imagined and is a phenomenon that cannot be avoided. The book mobilizes a series of events that have taken place on the planet to highlight the urgent need for actions at a global level to avoid aggravating this problem.Key words: Climate Change; Global Warming; International Politics.Recebido em: 04 Mai. 2020 | Aceito em: 22 Jun. 2020

scholarly journals Assessment and projection of the water budget over western Canada using convection-permitting weather research and forecasting simulations

2020 ◽  
Vol 24 (7) ◽  
pp. 3677-3697 ◽  
Author(s):  
Sopan Kurkute ◽  
Zhenhua Li ◽  
Yanping Li ◽  
Fei Huo
Keyword(s):  
Global Warming ◽  
Surface Water ◽  
High Resolution ◽  
Water Resources ◽  
Water Budget ◽  
Climate Models ◽  
Regional Climate ◽  
River Basins ◽  
Weather Research And Forecasting ◽  
Western Canada

Abstract. Water resources in cold regions in western Canada face severe risks posed by anthropogenic global warming as evapotranspiration increases and precipitation regimes shift. Although understanding the water cycle is key for addressing climate change issues, it is difficult to obtain high spatial- and temporal-resolution observations of hydroclimatic processes, especially in remote regions. Climate models are useful tools for dissecting and diagnosing these processes, especially the convection-permitting (CP) high-resolution regional climate simulation, which provides advantages over lower-resolution models by explicitly representing convection. In addition to better representing convective systems, higher spatial resolution also better represents topography, mountain meteorology, and highly heterogeneous geophysical features. However, there is little work with convection-permitting regional climate models conducted over western Canada. Focusing on the Mackenzie River and Saskatchewan River basins, this study investigated the surface water budget and atmospheric moisture balance in historical and representative concentration pathway (RCP8.5) projections using 4 km CP Weather Research and Forecasting (WRF). We compared the high-resolution 4 km CP WRF and three common reanalysis datasets, namely the North American Regional Reanalysis (NARR), the Japanese 55-year Reanalysis (JRA-55), and European Centre for Medium-Range Weather Forecasts reanalysis interim dataset (ERA-Interim). High-resolution WRF outperforms the reanalyses in balancing the surface water budget in both river basins with much lower residual terms. For the pseudo-global-warming scenario at the end of the 21st century with representative concentration pathway (RCP8.5) radiative forcing, both the Mackenzie River and Saskatchewan River basins show increases in the amplitude for precipitation and evapotranspiration and a decrease in runoff. The Saskatchewan River basin (SRB) shows a moderate increase in precipitation in the west and a small decrease in the east. Combined with a significant increase in evapotranspiration in a warmer climate, the Saskatchewan River basin would have a larger deficit of water resources than in the current climate based on the pseudo-global-warming (PGW) simulation. The high-resolution simulation also shows that the difference of atmospheric water vapour balance in the two river basins is due to flow orientation and topography differences at the western boundaries of the two basins. The sensitivity of water vapour balance to fine-scale topography and atmospheric processes shown in this study demonstrates that high-resolution dynamical downscaling is important for large-scale water balance and hydrological cycles.

Environment

2018 ◽  
Author(s):  
Mira Kamdar
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Large Population ◽  
Financial Capital ◽  
Negative Effects ◽  
Sea Levels ◽  
Coastal Cities ◽  
Rising Sea Levels

How will climate change affect India? With its large population, long coastlines, and location near the equator, India is particularly vulnerable to the negative effects of global warming. Rising sea levels will threaten the country’s many coastal cities, including the financial capital, Mumbai, and the...

Enmeshed

2018 ◽  
Author(s):  
Lisa Jean Moore
Keyword(s):  
Global Warming ◽  
Human Impact ◽  
Sea Levels ◽  
Horseshoe Crabs ◽  
Rising Sea Levels

The concept of the mesh is introduced to describe the analysis of horseshoe crabs, their environment, and the humans with whom they interact (both directly and indirectly). This network of entangled species and objects changes as time progresses, both as a result of human involvement but also without human involvement. Humans are no more essential than horseshoe crabs—but the focus does seem to be on the human impact on horseshoe crabs’ reproduction and survival in the context of global warming and rising sea levels. And humans, and their highways, are prioritized over the crabs. Here I call into question our tendency to take this for granted, and I encourage humans to be more mindful about our interconnectedness and the repercussions of our actions over the enmeshed web of species and environment.

scholarly journals Global Warming - Its Causes & Effects

2009 ◽  
Vol 8 (1) ◽  
pp. 16-25
Author(s):  
Nalinakashi M. A. ◽  
Nagaraja Rao C. ◽  
S. Sundareshan
Keyword(s):  
Global Warming ◽  
Climatic Changes ◽  
Climatic Conditions ◽  
Contributing Factors ◽  
Sea Levels ◽  
Current Trends ◽  
The Earth ◽  
Rate Of Increase ◽  
Rising Sea Levels ◽  
Heating Up

One of the most current and widely discussed factors, which could lead to the ultimate end of existence of Earth and man, is global warming and its devastating effects. Scientists have asked how fast the Earth is heating up, and how the warming effects on Earth may affect crops and climatic conditions. Several current trends clearly demonstrate that global warming is directly impacting on; rising sea levels, the melting of icecaps, and significant worldwide climatic changes. This article will i) explains the degree of destruction caused by global warming; contributing factors to warming, and ii) discusses what we can do to prevent the rate of increase in global warming.

scholarly journals The Role of Water Supply Development in the Earth System

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3349
Author(s):  
Slobodan P. Simonovic ◽  
Patrick A. Breach
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Resources ◽  
Global Change ◽  
Water Supply ◽  
Integrated Assessment Model ◽  
Earth System ◽  
Water Supplies ◽  
The Future

The ANEMI model is an integrated assessment model of global change that emphasizes the role of water resources. Securing water resources for the future is a key issue of global change and ties into global systems of population growth, climate change carbon cycle, hydrologic cycle, economy, energy production, land use and pollution generation. The focus of the presented work is on the development of global water supplies necessary to keep pace with a growing population and global economy. With the structure of the ANEMI model, a series of experiments are conducted in order to assess: (i) the current role of water supply in the global Earth system; (ii) the level of water stress that can be expected in the future; and (iii) what are the potential effects of water quality on global surface water supply and the distribution of water supply types. The results of model simulations show that surface water resources were sufficient to meet the water demand and water quality is not shown to be a significant factor for the development of surface water supplies. Due to globally aggregated scale, these impacts are averaged and likely understated.

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