scholarly journals Understanding the effects of climate change via disturbance on pristine arctic lakes—multitrophic level response and recovery to a 12‐yr, low‐level fertilization experiment

2021 ◽  
Author(s):  
Phaedra Budy ◽  
Casey A. Pennock ◽  
Anne E. Giblin ◽  
Chris Luecke ◽  
Daniel L. White ◽  
...  
Keyword(s):  
Climate Change ◽  
Arctic Lakes ◽  
Fertilization Experiment ◽  
Low Level ◽  
Response And Recovery

scholarly journals Importance of Laplacian of Low-Level Warming for the Response of Precipitation to Climate Change over Tropical Oceans

2020 ◽  
Vol 33 (10) ◽  
pp. 4403-4417 ◽  
Author(s):  
Margaret L. Duffy ◽  
Paul A. O’Gorman ◽  
Larissa E. Back
Keyword(s):  
Climate Change ◽  
Boundary Layer ◽  
Climate Warming ◽  
Climate Model ◽  
Low Level ◽  
Tropical Oceans ◽  
Atmospheric Mixed Layer ◽  
Virtual Temperature ◽  
Projected Changes ◽  
The Tropics

AbstractSeveral physical mechanisms have been proposed for projected changes in mean precipitation in the tropics under climate warming. In particular, the “wet-get-wetter” mechanism describes an amplification of the pattern of precipitation in a moister atmosphere, and the “warmer-get-wetter” mechanism describes enhanced upward motion and precipitation in regions where the increase in SST exceeds the tropical-mean increase. Studies of the current climate have shown that surface convergence over the tropical oceans is largely driven by horizontal gradients of low-level temperature, but the influence of these gradients on the precipitation response under climate warming has received little attention. Here, a simple model is applied to give a decomposition of changes in precipitation over tropical oceans in twenty-first-century climate model projections. The wet-get-wetter mechanism and changes in surface convergence are found to be of widespread importance, whereas the warmer-get-wetter mechanism is primarily limited to negative anomalies in the tropical southern Pacific. Furthermore, surface convergence is linked to gradients of boundary layer temperature using an atmospheric mixed layer model. Changes in surface convergence are found to be strongly related to changes in the Laplacian of boundary layer virtual temperature, and, to a lesser extent, the Laplacian of SST. Taken together, these results suggest that a “Laplacian-of-warming” mechanism is of comparable importance to wet get wetter and warmer get wetter for the response of precipitation to climate change over tropical oceans.

scholarly journals ECOLOGICAL CERTIFICATION IN TOURISM SECTOR IN MONTENEGRO – ADVANTAGES AND CHALLENGES

2018 ◽  
Vol 1 (16) ◽  
pp. 37
Author(s):  
Viktor Subotić ◽  
Saša Popović
Keyword(s):  
Climate Change ◽  
Financial Resources ◽  
Main Interest ◽  
Low Level ◽  
Tourism Sector ◽  
Accommodation Sector ◽  
Level Of Understanding ◽  
Certification Requirements ◽  
Local Incentives ◽  
Green Certification

The aim of this paper is to analyze concept of ecological certification, its advantages and challenges in the context of Montenegrin tourism accommodation sector. Based on EU Eco Label and Travelife certification schemes we tested advantages of greening tourist offer and contribution to the climate change combat in the country. Sample of 40 accommodation facilities are taken into consideration, and being offered series of presentations, direct interviews and incentives. Our results show that 10 out of 40 accommodation facilities are awarded with certificate, while 15 more facilities are in the process of gaining it in 2018. The main challenges we evidenced are as follows: limited human and financial resources to implement certification requirements; low level of understanding of marketing advantages that green certification brings; absence of national and local incentives to support certification implementation and destination safety and security aspects becoming main interest of tourism entrepreneurs.

scholarly journals Economics of Disaster Risk and Resilience in Small Island Developing States

2021 ◽  
Author(s):  
◽  
Tauisi Taupo
Keyword(s):  
Climate Change ◽  
Risk Management ◽  
Disaster Risk Reduction ◽  
Household Survey ◽  
Disaster Risk ◽  
Disaster Risk Management ◽  
Small Island ◽  
Small Island Developing States ◽  
The Pacific ◽  
Response And Recovery

<p>The four essays investigate the impacts and implications of climate change and disasters in Small Island Developing States (SIDS) in the Pacific by examining disaster risk, resilience, response, and recovery in Tuvalu.  The first chapter starts with a survey on the conceptual framework of disaster risk which relies on its associated components of hazard, vulnerability and exposure. It is an introductory literature review that sets the scene for the other chapters. It is not intended to make an original contribution nor a critical review of the literature justified to be publishable. How we measure these risks depends on how we define disaster risk and its components. Though there are diverse views on these definitions in different disciplines, we can capitalise on their commonalities to frame disaster risk models.  The second chapter investigates the vulnerability of households to climatic disasters in Tuvalu. Small Island Developing States, particularly the atoll islands, are considered to be the most vulnerable to climatic change, and in particular to sea-level rise and its associated risks. From the Tuvalu Statistics Department household survey, we construct poverty and hardship profiles for households on the different islands of Tuvalu, and combine these with geographic and topographic information to assess the exposure differentials among different groups using spatial econometric models. Besides the observation that households in hardship are more vulnerable to negative shocks because they lack the resources to respond, we also find that they are also more likely to reside in highly exposed areas to disasters (closer to the coasts and at lower elevation) and have less ability to migrate (between and within the islands).  The third chapter examines cyclones. The intensity of cyclones in the Pacific is predicted to increase and sea levels are predicted to rise, so an atoll nation like Tuvalu can serve as the `canary in the coal mine' pointing to the new risks that are emerging because of climatic change. Based on a household survey we conducted in Tuvalu, we quantify the impacts of Tropical Cyclone Pam (March 2015) on households, and the determinants of these impacts in terms of hazard, exposure, vulnerability and responsiveness. Households experienced significant damage due to the storm surge caused by the cyclone, even though the cyclone itself passed very far away (about a 1,000 km). This risk of distant cyclones has been overlooked in the literature, and ignoring it leads to significant under-estimation of the disaster risk facing low-lying atoll islands. Lastly, we constructed hypothetical policy scenarios, and calculated the estimated loss and damage they would have been associated with { a first step in building careful assessments of the feasibility of various disaster risk reduction policies.  The fourth chapter examines the financing of disaster risk management. Future climate and disaster risks are likely to impose increasing financial pressure on the governments of low-lying atoll nations. The aftermath of a disaster such as a cyclone requires financial means for quick response and recovery. Hence, we quantify appropriate levels of financial support for expected disasters in Tuvalu and Kiribati by building on the Pacific Catastrophe Risk Assessment and Financing Initiative (PCRAFI) calculated likely costs for disasters. To these, we add estimates of the potential effects of distant cyclones, droughts, sea level rise and climate change as they are predicted to affect low-lying atoll islands. There are several potential financial instruments available for disaster risk management in the Pacific Islands. We focus on the potential contribution of the sovereign wealth funds (SWF) of Tuvalu and Kiribati in reducing reliance on foreign aid for both ex-ante and ex-post disaster risk management. We forecast the future size of the SWF using Monte Carlo simulations and an Auto-Regressive Integrated Moving Average model. We examine the long-term sustainability of the SWF, and the feasibility of extending their mandate to cover and pay for at least some climate change adaptation and disaster risk reduction.</p>

scholarly journals Knowledge, Concern and Support for Policy on Adaptations to Impacts of Climate Change in Grand Bahamian

2020 ◽  
pp. 123-135
Author(s):  
Feraldo D. Joffre ◽  
Berkley N. King Jr.
Keyword(s):  
Climate Change ◽  
Scientific Knowledge ◽  
Climate Adaptation ◽  
Group Discussion ◽  
Climate Change Impacts ◽  
Low Level ◽  
Support Policy ◽  
Level Of Concern ◽  
High Level ◽  
Impacts Of Climate Change

This study assessed the knowledge, concern and support of policy relative to climate change impacts of Grand Bahamians. Specifically the study assessed the awareness and concern of Grand Bahamians; examine the difference in participants’ awareness and concern of climate change impacts; analyze the factors that influence the awareness and concern of climate change impacts of participants; and assess the predictive ability of the Value Belief Norm Theory in relation to the participants’ intent to support policy for climate change issues. A survey questionnaire and focus group discussion were used for ata collection Findings showed that Grand Bahamians have a low level of scientific knowledge, a high level of concern regarding climate change and a strong intent to support policy for climate adaptation. Despite this low level of scientific knowledge, they have a developed experiential knowledge due to their frequent exposure to extreme climate events they perceive to be associated with climate change. The high level of concern influenced their desire to support policies aimed at adapting to the adverse impacts of climate change.

The impact of climate change on the global coastal low-level wind jets: EC-EARTH simulations

2016 ◽  
Vol 137 ◽  
pp. 88-106 ◽  
Author(s):  
Alvaro Semedo ◽  
Pedro M.M. Soares ◽  
Daniela C.A. Lima ◽  
Rita M. Cardoso ◽  
Mariana Bernardino ◽  
...  
Keyword(s):  
Climate Change ◽  
Impact Of Climate Change ◽  
Low Level ◽  
The Impact

scholarly journals Climate Change Associated with Neonatal Health Risks: Rwandan Nurses and Midwives’ Awareness and Perceptions

2020 ◽  
Vol 3 (2) ◽  
pp. 261-272
Author(s):  
Richard Nsengiyumva ◽  
Marie Rose Mukarubayiza ◽  
Claudine Murekatete ◽  
Pamela Meharry
Keyword(s):  
Climate Change ◽  
Health Risks ◽  
Statistical Tests ◽  
Public Health Problem ◽  
Neonatal Health ◽  
Global Public Health ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Low Level ◽  
Nurses And Midwives

Background Climate change (CC) is a global public health problem. In Rwanda, it is estimated that 28% of neonatal death is attributable to CC, yet little is known about healthcare providers’ awareness of neonatal health risks. ObjectiveTo assess nurses’ and midwives’ awareness of CC and perceptions of potential neonatal health risks associated with CC at selected hospitals in Rwanda. Methods A cross-sectional survey was performed at four selected hospitals. A random sampling technique was used to select 184 of 340 nurses and midwives working in neonatology, pediatrics, and maternity departments. Descriptive and inferential statistical tests were done. ResultsThe majority of participants were females (62.1%), nurses (60.5%), advanced diploma holders (55.4%). The majority (60.4%) had low level awareness of CC, and only 2.8% obtained CC information at nursing school. The majority (61.02%) had low perception of potential CC’ related potential neonatal health risks. High education level, working in neonatology and longer working experience were found to be associated with high level awareness of CC and high perceptions of potential neonatal health risks associated with CC (p<0.05). Conclusion There was a low level awareness of CC awareness and low perceptions of potential neonatal health risks among nurses and midwives. Offering in-service training and integrating CC’ health risks in the nursing curricula could motivate climate action among Rwandan nurses and midwives.  Rwanda J Med Health Sci 2020;3(2):261-272

scholarly journals Mechanisms Controlling Precipitation in the Northern Portion of the North American Monsoon

2011 ◽  
Vol 24 (11) ◽  
pp. 2771-2783 ◽  
Author(s):  
Ruth Cerezo-Mota ◽  
Myles Allen ◽  
Richard Jones
Keyword(s):  
Climate Change ◽  
North American ◽  
General Circulation ◽  
Climate Model ◽  
General Circulation Models ◽  
Regional Model ◽  
North American Monsoon ◽  
Low Level ◽  
The North ◽  
Northern Portion

Abstract Key mechanisms important for the simulation and better understanding of the precipitation of the North American monsoon (NAM) were analyzed in this paper. Three experiments with the Providing Regional Climates for Impacts Studies (PRECIS) regional climate model, the Hadley Centre Regional Model version 3P (HadRM3P), driven by different boundary conditions were carried out. After a detailed analysis of the moisture and low-level winds derived from the models, the authors conclude that the Gulf of Mexico (GoM) moisture and the Great Plains low-level jet (GPLLJ) play an important role in the northern portion of the NAM. Moreover, the realistic simulation of these features is necessary for a better simulation of precipitation in the NAM. Previous works suggest that the influence of moisture from the GoM in Arizona–New Mexico (AZNM) takes place primarily via the middle- and upper-tropospheric flow (above 700 mb). However, it is shown here that if the GoM does not supply enough moisture and the GPLLJ at lower levels (below 700 mb) does not reach the AZNM region, then a dry westerly flow dominates that area and the summer precipitation is below normal. The implications of these findings for studies of climate change are demonstrated with the analysis of two general circulation models (GCMs) commonly used for climate change prediction, which are shown not to reproduce correctly the GPLLJ intensity nor the moisture in the GoM. This implies that the precipitation in AZNM would not be correctly represented by a regional model driven by these GCMs.

scholarly journals Assessmentof the sensitivity of rural fresh water and sanitation to the climate change – a case study in Can Gio district

2018 ◽  
Vol 1 (6) ◽  
pp. 214-224
Author(s):  
Ngoc Tuan Le
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Fresh Water ◽  
Water And Sanitation ◽  
The Sustainable Development ◽  
Low Level ◽  
Low Levels ◽  
Development Objectives ◽  
Assessing Sensitivity

This work aimed at calculating and assessing sensitivity (S) to the climate change (CC) of the rural fresh water and sanitation (RFWS), a case study in Can Gio for the period of 2014 – 2025, by index (via 12 indicators), survey, and professional adjustment methods. Results showed that, in 2014, the S index of the whole district was 40.7 (medium low level), ranging from 29–58 among 7 communes (according to medium low to medium high levels). Binh Khanh had the highest S index, 58 points (2014), followed by An Thoi Dong, Tam Thon Hiep, and Long Hoa. For the period of 2020–2030, S indices of the district tend to decrease (35.3 and 33.9, respectively), ranging from low to medium low levels among the communes. This work also reviewed strengths and weaknesses in the sensitivity to CC of RFWS in the local, pointing out and prioritizing 7 defected links as the basis for establishing solutions to mitigate the S to CC of the system, serving the sustainable development objectives of the local.

scholarly journals Projection of Rice Blast Diseases in West Java Region based on Climate Change Scenario

Agromet ◽  
2018 ◽  
Vol 32 (2) ◽  
pp. 62
Author(s):  
Aji Irsyam N. Sukarta ◽  
Yon Sugiarto ◽  
Yonny Koesmaryono
Keyword(s):  
Climate Change ◽  
Simulation Modeling ◽  
Climate Change Scenario ◽  
Change Scenario ◽  
Common Disease ◽  
Climate Projections ◽  
Crop Failure ◽  
West Java ◽  
Low Level ◽  
Present Simulation

<p>Rice production in Indonesia has faced many challenges including disease outbreak leading to crop failure. Blast is a common disease, which is often found in paddy, that able to inhibit its growth and development. Here, we present simulation modeling to predict blast outbreak under climate change projection scenario in west Java, Indonesia. Two climate projections namely RCP4.5 and RCP8.5 were employed as input for EPIRICE epidemiological model. With this model we anaysed the potency of blast outbreak for 2021-2050. Then we compared the area of the projected blast with the output from current climate condition (1996-2005, as a baseline). Our results show that the potency of blast outbreak was in a low level under baseline. The area indicating a low level of outbreak was observed for both climate projections. Our findings revealed that a decreasing trend on the outbreak is expected for 2021-2050. However, an increased number of area having blast outbreak was observed especially in mountains region as many of 2%.day and 6%.day for RCP4.5 and RCP8.5, respectively. </p>

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