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https://www.readbyqxmd.com/read/27922014/large-differences-in-regional-precipitation-change-between-a-first-and-second-2%C3%A2-k-of-global-warming
#1
Peter Good, Ben B B Booth, Robin Chadwick, Ed Hawkins, Alexandra Jonko, Jason A Lowe
For adaptation and mitigation planning, stakeholders need reliable information about regional precipitation changes under different emissions scenarios and for different time periods. A significant amount of current planning effort assumes that each K of global warming produces roughly the same regional climate change. Here using 25 climate models, we compare precipitation responses with three 2 K intervals of global ensemble mean warming: a fast and a slower route to a first 2 K above pre-industrial levels, and the end-of-century difference between high-emission and mitigation scenarios...
December 6, 2016: Nature Communications
https://www.readbyqxmd.com/read/27920782/acclimation-of-biochemical-and-diffusive-components-of-photosynthesis-in-rice-wheat-and-maize-to-heat-and-water-deficit-implications-for-modeling-photosynthesis
#2
Juan A Perdomo, Elizabete Carmo-Silva, Carmen Hermida-Carrera, Jaume Flexas, Jeroni Galmés
The impact of the combined effects of heat stress, increased vapor pressure deficit (VPD) and water deficit on the physiology of major crops needs to be better understood to help identifying the expected negative consequences of climate change and heat waves on global agricultural productivity. To address this issue, rice, wheat, and maize plants were grown under control temperature (CT, 25°C, VPD 1.8 kPa), and a high temperature (HT, 38°C, VPD 3.5 kPa), both under well-watered (WW) and water deficit (WD) conditions...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920170/epidemiology-of-chikungunya-in-the-americas
#3
Sergio Yactayo, J Erin Staples, Véronique Millot, Laurence Cibrelus, Pilar Ramon-Pardo
Chikungunya virus (CHIKV) emerged in the Americas in late 2013 to cause substantial acute and chronic morbidity. About 1.1 million cases of chikungunya were reported within a year, including severe cases and deaths. The burden of chikungunya is unclear owing to inadequate disease surveillance and underdiagnosis. Virus evolution, globalization, and climate change may further CHIKV spread. No approved vaccine or antiviral therapeutics exist. Early detection and appropriate management could reduce the burden of severe atypical and chronic arthritic disease...
December 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27919557/trend-shifts-in-satellite-derived-vegetation-growth-in-central-eurasia-1982-2013
#4
Hao-Jie Xu, Xin-Ping Wang, Tai-Bao Yang
Central Eurasian vegetation is critical for the regional ecological security and the global carbon cycle. However, climatic impacts on vegetation growth in Central Eurasia are uncertain. The reason for this uncertainty lies in the fact that the response of vegetation to climate change showed nonlinearity, seasonality and differences among plant functional types. Based on remotely sensed vegetation index and in-situ meteorological data for the years 1982-2013, in conjunction with the latest land cover type product, we analyzed how vegetation growth trend varied across different seasons and evaluated vegetation response to climate variables at regional, biome and pixel scales...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27917936/robust-contribution-of-decadal-anomalies-to-the-frequency-of-central-pacific-el-ni%C3%A3-o
#5
Arnold Sullivan, Jing-Jia Luo, Anthony C Hirst, Daohua Bi, Wenju Cai, Jinhai He
During year-to-year El Niño events in recent decades, major sea surface warming has occurred frequently in the central Pacific. This is distinct from the eastern Pacific warming pattern during canonical El Niño events. Accordingly, the central-Pacific El Niño exerts distinct impacts on ecosystems, climate and hurricanes worldwide. The increased frequency of the new type of El Niño presents a challenge not only for the understanding of El Niño dynamics and its change but also for the prediction of El Niño and its global impacts at present and future climate...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27916302/modelling-seasonal-effects-of-temperature-and-precipitation-on-honey-bee-winter-mortality-in-a-temperate-climate
#6
Matthew Switanek, Karl Crailsheim, Heimo Truhetz, Robert Brodschneider
Insect pollinators are essential to global food production. For this reason, it is alarming that honey bee (Apis mellifera) populations across the world have recently seen increased rates of mortality. These changes in colony mortality are often ascribed to one or more factors including parasites, diseases, pesticides, nutrition, habitat dynamics, weather and/or climate. However, the effect of climate on colony mortality has never been demonstrated. Therefore, in this study, we focus on longer-term weather conditions and/or climate's influence on honey bee winter mortality rates across Austria...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27915442/co-exposure-to-low-doses-of-the-food-contaminants-deoxynivalenol-and-nivalenol-has-a-synergistic-inflammatory-effect-on-intestinal-explants
#7
Imourana Alassane-Kpembi, Olivier Puel, Philippe Pinton, Anne-Marie Cossalter, Ting-Chao Chou, Isabelle P Oswald
The global incidence of Fusarium head blight and attendant cereal grains multi-contamination by the trichothecene mycotoxins deoxynivalenol (DON) and nivalenol (NIV) are increasing as a possible result of climate change and inadequate agricultural practices. At the molecular level, these mycotoxins bind to the ribosome, activate the mitogen-activated protein kinase and induce a local and systemic inflammation. DON is of public health concern owing to the narrow margin between exposure and tolerable daily intake...
December 3, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27915134/metabolic-and-reproductive-plasticity-of-core-and-marginal-populations-of-the-eurythermic-saline-water-bug-sigara-selecta-hemiptera-corixidae-in-a-climate-change-context
#8
J A Carbonell, D T Bilton, P Calosi, A Millán, A Stewart, J Velasco
Ongoing climate change is driving dramatic range shifts in diverse taxa worldwide, and species responses to global change are likely to be determined largely by population responses at geographical range margins. Here we investigate the metabolic and reproductive plasticity in response to water temperature and salinity variation of two populations of the eurythermic saline water bug Sigara selecta: one population located close to the northern edge of its distribution, in a relatively cold, thermally stable region (SE England - 'marginal'), and one close to the range centre, in a warmer and more thermally variable Mediterranean climate (SE Spain - 'core')...
November 30, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27913828/engineering-and-evolution-of-saccharomyces-cerevisiae-to-produce-biofuels-and-chemicals
#9
Timothy L Turner, Heejin Kim, In Iok Kong, Jing-Jing Liu, Guo-Chang Zhang, Yong-Su Jin
To mitigate global climate change caused partly by the use of fossil fuels, the production of fuels and chemicals from renewable biomass has been attempted. The conversion of various sugars from renewable biomass into biofuels by engineered baker's yeast (Saccharomyces cerevisiae) is one major direction which has grown dramatically in recent years. As well as shifting away from fossil fuels, the production of commodity chemicals by engineered S. cerevisiae has also increased significantly. The traditional approaches of biochemical and metabolic engineering to develop economic bioconversion processes in laboratory and industrial settings have been accelerated by rapid advancements in the areas of yeast genomics, synthetic biology, and systems biology...
December 3, 2016: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/27913021/climate-and-land-use-changes-effects-on-soil-organic-carbon-stocks-in-a-mediterranean-semi-natural-area
#10
Beatriz Lozano-García, Miriam Muñoz-Rojas, Luis Parras-Alcántara
A thorough knowledge of the effects of climate and land use changes on the soil carbon pool is critical to planning effective strategies for adaptation and mitigation in future scenarios of global climate and land use change. In this study, we used CarboSOIL model to predict changes in soil organic carbon stocks in a semi-natural area of Southern Spain in three different time horizons (2040, 2070, 2100), considering two general circulation models (BCM2 and ECHAM5) and three IPCC scenarios (A1b, A2, B2). The effects of potential land use changes from natural vegetation (Mediterranean evergreen oak woodland) to agricultural land (olive grove and cereal) on soil organic carbon stocks were also evaluated...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27912005/climate-change-increases-the-production-of-female-hatchlings-at-a-northern-sea-turtle-rookery
#11
J L Reneker, S J Kamel
The most recent climate change projections show a global increase in temperatures, along with major adjustments to precipitation, throughout the 21st century. Species exhibiting temperature-dependent sex determination are highly susceptible to such changes since the incubation environment influences critical offspring characteristics such as survival and sex ratio. Here we show that the mean incubation duration of loggerhead sea turtle (Caretta caretta) nests from a high-density nesting beach on Bald Head Island, North Carolina, USA has decreased significantly over the past 25 yr...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911995/allometry-data-and-equations-for-coastal-marsh-plants
#12
Meng Lu, Joshua S Caplan, Jonathan D Bakker, J Adam Langley, Thomas J Mozdzer, Bert G Drake, J Patrick Megonigal
Coastal marshes are highly valued for ecosystem services such as protecting inland habitats from storms, sequestering carbon, removing nutrients and other pollutants from surface water, and providing habitat for fish, shellfish, and birds. Because plants largely determine the structure and function of coastal marshes, quantifying plant biomass is essential for evaluating these ecosystem services, understanding the biogeochemical processes that regulate ecosystem function, and forecasting tidal wetland responses to accelerated sea level rise...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911783/deglacial-temperature-history-of-west-antarctica
#13
Kurt M Cuffey, Gary D Clow, Eric J Steig, Christo Buizert, T J Fudge, Michelle Koutnik, Edwin D Waddington, Richard B Alley, Jeffrey P Severinghaus
The most recent glacial to interglacial transition constitutes a remarkable natural experiment for learning how Earth's climate responds to various forcings, including a rise in atmospheric CO2 This transition has left a direct thermal remnant in the polar ice sheets, where the exceptional purity and continual accumulation of ice permit analyses not possible in other settings. For Antarctica, the deglacial warming has previously been constrained only by the water isotopic composition in ice cores, without an absolute thermometric assessment of the isotopes' sensitivity to temperature...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911770/the-right-incentives-enable-ocean-sustainability-successes-and-provide-hope-for-the-future
#14
Jane Lubchenco, Elizabeth B Cerny-Chipman, Jessica N Reimer, Simon A Levin
Healthy ocean ecosystems are needed to sustain people and livelihoods and to achieve the United Nations Sustainable Development Goals. Using the ocean sustainably requires overcoming many formidable challenges: overfishing, climate change, ocean acidification, and pollution. Despite gloomy forecasts, there is reason for hope. New tools, practices, and partnerships are beginning to transform local fisheries, biodiversity conservation, and marine spatial planning. The challenge is to bring them to a global scale...
December 2, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27909425/thermodynamic-and-kinetic-response-of-microbial-reactions-to-high-co2
#15
Qusheng Jin, Matthew F Kirk
Geological carbon sequestration captures CO2 from industrial sources and stores the CO2 in subsurface reservoirs, a viable strategy for mitigating global climate change. In assessing the environmental impact of the strategy, a key question is how microbial reactions respond to the elevated CO2 concentration. This study uses biogeochemical modeling to explore the influence of CO2 on the thermodynamics and kinetics of common microbial reactions in subsurface environments, including syntrophic oxidation, iron reduction, sulfate reduction, and methanogenesis...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27909293/major-losses-of-nutrients-following-a-severe-drought-in-a-boreal-forest
#16
Daniel Houle, Geneviève Lajoie, Louis Duchesne
Because of global warming, the frequency and severity of droughts are expected to increase, which will have an impact on forest ecosystem health worldwide(1). Although the impact of drought on tree growth and mortality is being increasingly documented(2-4), very little is known about the impact on nutrient cycling in forest ecosystems. Here, based on long-term monitoring data, we report nutrient fluxes in a boreal forest before, during and following a severe drought in July 2012. During and shortly after the drought, we observed high throughfall (rain collected below the canopy) concentrations of nutrient base cations (potassium, calcium and magnesium), chlorine, phosphorus and dissolved organic carbon (DOC), differing by one to two orders of magnitude relative to the long-term normal, and resulting in important canopy losses...
November 28, 2016: Nature Plants
https://www.readbyqxmd.com/read/27909212/black-carbon-emission-reduction-strategies-in-healthcare-industry-for-effective-global-climate-change-management
#17
Emilia Mmbando Raila, David O Anderson
Climate change remains one of the biggest threats to life on earth to date with black carbon (BC) emissions or smoke being the strongest cause after carbon dioxide (CO2). Surprisingly, scientific evidence about black carbon emissions reduction in healthcare settings is sparse. This paper presents new research findings on the reduction of black carbon emissions from an observational study conducted at the UN Peacekeeping Operations (MINUSTAH) in Haiti in 2014. Researchers observed 20 incineration cycles, 30 minutes for each cycle of plastic and cardboard sharps healthcare waste (HCW) containers ranged from 3 to 14...
November 30, 2016: Waste Management & Research
https://www.readbyqxmd.com/read/27907078/signal-of-acceleration-and-physical-mechanism-of-water-cycle-in-xinjiang-china
#18
Guo-Lin Feng, Yong-Ping Wu
Global warming accelerates water cycle with features of regional difference. However, little is known about the physical mechanism behind the phenomenon. To reveal the links between water cycle and climatic environment, we analyzed the changes of water cycle elements and their relationships with climatic and environmental factors. We found that when global warming was significant during the period of 1986-2003, the precipitation in Tarim mountains as well as Xinjiang increased rapidly except for Tarim plains, which indicated that there existed a signal of acceleration for water cycle in Xinjiang...
2016: PloS One
https://www.readbyqxmd.com/read/27905442/quantifying-global-soil-carbon-losses-in-response-to-warming
#19
T W Crowther, K E O Todd-Brown, C W Rowe, W R Wieder, J C Carey, M B Machmuller, B L Snoek, S Fang, G Zhou, S D Allison, J M Blair, S D Bridgham, A J Burton, Y Carrillo, P B Reich, J S Clark, A T Classen, F A Dijkstra, B Elberling, B A Emmett, M Estiarte, S D Frey, J Guo, J Harte, L Jiang, B R Johnson, G Kröel-Dulay, K S Larsen, H Laudon, J M Lavallee, Y Luo, M Lupascu, L N Ma, S Marhan, A Michelsen, J Mohan, S Niu, E Pendall, J Peñuelas, L Pfeifer-Meister, C Poll, S Reinsch, L L Reynolds, I K Schmidt, S Sistla, N W Sokol, P H Templer, K K Treseder, J M Welker, M A Bradford
The majority of the Earth's terrestrial carbon is stored in the soil. If anthropogenic warming stimulates the loss of this carbon to the atmosphere, it could drive further planetary warming. Despite evidence that warming enhances carbon fluxes to and from the soil, the net global balance between these responses remains uncertain. Here we present a comprehensive analysis of warming-induced changes in soil carbon stocks by assembling data from 49 field experiments located across North America, Europe and Asia...
November 30, 2016: Nature
https://www.readbyqxmd.com/read/27904417/global-warming-and-the-possible-globalization-of-vector-borne-diseases-a-call-for-increased-awareness-and-action
#20
Emmanuel O Balogun, Andrew J Nok, Kiyoshi Kita
Human activities such as burning of fossil fuels play a role in upsetting a previously more balanced and harmonious ecosystem. Climate change-a significant variation in the usual pattern of Earth's average weather conditions is a product of this ecosystem imbalance, and the rise in the Earth's average temperature (global warming) is a prominent evidence. There is a correlation between global warming and the ease of transmission of infectious diseases. Therefore, with global health in focus, we herein opine a stepping-up of research activities regarding global warming and infectious diseases globally...
2016: Tropical Medicine and Health
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