Public microblogging on climate change: One year of Twitter worldwide

2014 ◽  
Vol 26 ◽  
pp. 171-182 ◽  
Author(s):  
Andrei P. Kirilenko ◽  
Svetlana O. Stepchenkova
Keyword(s):  
Climate Change ◽  
One Year

Fire regime impacts on post-fire diurnal land surface temperature change over North American boreal forest

2021 ◽  
Author(s):  
Jie Zhao ◽  
Chao Yue ◽  
Philippe Ciais ◽  
Xin Hou ◽  
Qi Tian
Keyword(s):  
Climate Change ◽  
Regression Analysis ◽  
Land Surface ◽  
Fire Regime ◽  
Fire Severity ◽  
Linear Regression Analysis ◽  
Fire Regimes ◽  
Fire Intensity ◽  
Surface Temperature Change ◽  
One Year

<p>Wildfire is the most prevalent natural disturbance in the North American boreal (BNA) forest and can cause post-fire land surface temperature change (ΔLST<sub>fire</sub>) through biophysical processes. Fire regimes, such as fire severity, fire intensity and percentage of burned area (PBA), might affect ΔLST<sub>fire</sub> through their impacts on post-fire vegetation damage. However, the difference of the influence of different fire regimes on the ΔLST<sub>fire</sub> has not been quantified in previous studies, despite ongoing and projected changes in fire regimes in BNA in association with climate change. Here we employed satellite observations and a space-and-time approach to investigate diurnal ΔLST<sub>fire</sub> one year after fire across BNA. We further examined potential impacts of three fire regimes (i.e., fire intensity, fire severity and PBA) and latitude on ΔLST<sub>fire</sub> by simple linear regression analysis and multiple linear regression analysis in a stepwise manner. Our results demonstrated pronounced asymmetry in diurnal ΔLST<sub>fire</sub>, characterized by daytime warming in contrast to nighttime cooling over most BNA. Such diurnal ΔLST<sub>fire</sub> also exhibits a clear latitudinal pattern, with stronger daytime warming and nighttime cooling one year after fire in lower latitudes, whereas in high latitudes fire effects are almost neutral. Among the fire regimes, fire severity accounted for the most (43.65%) of the variation of daytime ΔLST<sub>fire</sub>, followed by PBA (11.6%) and fire intensity (8.5%). The latitude is an important factor affecting the influence of fire regimes on daytime ΔLST<sub>fire</sub>. The sensitivity of fire intensity and PBA impact on daytime ΔLST<sub>fire</sub> decreases with latitude. But only fire severity had a significant effect on nighttime ΔLST<sub>fire</sub> among three fire regimes. Our results highlight important fire regime impacts on daytime ΔLST<sub>fire</sub>, which might play a critical role in catalyzing future boreal climate change through positive feedbacks between fire regime and post-fire surface warming.</p>

scholarly journals Can Panel Data Methodologies Determine the Impact of Climate Change on Economic Growth?

2021 ◽  
Author(s):  
Richard A. Rosen ◽  
Keyword(s):  
Climate Change ◽  
Economic Growth ◽  
Panel Data ◽  
Regression Equations ◽  
Annual Variations ◽  
Omitted Variable Bias ◽  
The World ◽  
Variable Bias ◽  
One Year ◽  
The Impact

Several major papers have been published over the last ten years claiming to have detected the impact of either annual variations in weather or climate change on the GDPs of most countries in the world using panel data-based statistical methodologies. These papers rely on various multivariate regression equations which include the annual average temperatures for most countries in the world as one or more of the independent variables, where the usual dependent variable is the change in annual GDP for each country from one year to the next year over 30-50 year time periods. Unfortunately, the quantitative estimates derived in these papers are misleading because the equations from which they are calculated are wrong. The major reason the resulting regression equations are wrong is because they do not include any of the appropriate and usual economic factors or variables which are likely to be able to explain changes in GDP/economic growth whether or not climate change has already impacted each country’s economy. These equations, in short, exhibit suffer from “omitted variable bias,” to use statistical terminology.

scholarly journals A changing climate of skepticism: The factors shaping climate change coverage in the US press

2015 ◽  
Vol 26 (4) ◽  
pp. 498-513 ◽  
Author(s):  
Hannah Schmid-Petri ◽  
Silke Adam ◽  
Ivo Schmucki ◽  
Thomas Häussler
Keyword(s):  
Climate Change ◽  
United States ◽  
Content Analysis ◽  
Mass Media ◽  
Media Coverage ◽  
Print Media ◽  
The United States ◽  
Quantitative Content ◽  
The Us ◽  
One Year

Skepticism toward climate change has a long tradition in the United States. We focus on mass media as the conveyors of the image of climate change and ask: Is climate change skepticism still a characteristic of US print media coverage? If so, to what degree and in what form? And which factors might pave the way for skeptics entering mass media debates? We conducted a quantitative content analysis of US print media during one year (1 June 2012 to 31 May 2013). Our results show that the debate has changed: fundamental forms of climate change skepticism (such as denial of anthropogenic causes) have been abandoned in the coverage, being replaced by more subtle forms (such as the goal to avoid binding regulations). We find no evidence for the norm of journalistic balance, nor do our data support the idea that it is the conservative press that boosts skepticism.

scholarly journals Drought stress and soil management practices in grapevines in Cyprus under the threat of climate change

2018 ◽  
Vol 9 (4) ◽  
pp. 703-714 ◽  
Author(s):  
Antonios Chrysargyris ◽  
Panayiota Xylia ◽  
Vassilis Litskas ◽  
Athanasia Mandoulaki ◽  
Demetris Antoniou ◽  
...  
Keyword(s):  
Climate Change ◽  
Management Practices ◽  
Adaptation Strategy ◽  
Soluble Solids ◽  
No Tillage ◽  
Wine Production ◽  
Yield And Quality ◽  
Negative Effect ◽  
One Year ◽  
Red Grape

Abstract The Middle East, the cradle of viticulture and wine production, is gradually but steadily becoming hotter and drier because of climate change (CC). In the current study, we evaluated the effect of tillage and irrigation on yield and quality characteristics of the heat-resistant, indigenous red-grape variety Maratheftiko for one year. Yield increased (two-fold) in vines with irrigation and tillage compared to tillage with no irrigation. The absence of tillage buffered the negative effect of the lack of irrigation on yield. At the veraison stage, leaf stomatal conductance decreased in non-irrigated vines, independently of the application of tillage or not. At veraison, tillage increased (up to 27.5%) phenolics when compared to no tillage in non-irrigated vines. Vines accumulated more N, P, and K and less Mg during the flowering stage compared to veraison. At veraison, irrigation decreased K content in vines subjected to tillage and decreased Mg content in vines subjected to no tillage. Total soluble solids and anthocyanins of berries increased with the absence of irrigation and tillage. Total phenolics increased with tillage in both irrigated and non-irrigated plants. Our results indicate that no tillage systems may be viable as an adaptation strategy in the context of CC.

US Media Coverage of the Cancún Climate Change Conference

2012 ◽  
Vol 45 (02) ◽  
pp. 251-258 ◽  
Author(s):  
Jules Boykoff
Keyword(s):  
Climate Change ◽  
United Nations ◽  
Media Coverage ◽  
Economic Impacts ◽  
The United States ◽  
Business Community ◽  
Political Actors ◽  
The Us ◽  
The Media ◽  
One Year

AbstractMuch was at stake at the 2010 United Nations climate change conference in Cancún, Mexico. The United Nations Framework Convention on Climate Change was being challenged by the world's two largest greenhouse gas emitters, China and the United States, after these countries reached a tenuous backroom deal one year earlier in Copenhagen. Meanwhile, scientific studies were warning of serious and severe climate change. This article analyzes newspaper articles and television segments from the US media that appeared during the timeframe of the Cancún conference, focusing on two key facets of coverage that continue to be important as negotiations proceed: the economic impacts and opportunities that climate change creates and the role that China plays in negotiations. I also examine which sources were allowed through the news gates and which ones were marginalized. I find that the US media discussed economic opportunities more frequently than economic impacts and that the media treated China in an even-handed way. Established political actors dominated coverage, followed by representatives of nongovernmental organizations and the business community. Meanwhile, grassroots activists and indigenous voices were marginalized.

scholarly journals Eco-evolutionary dynamics may show an irreversible regime shift, illustrated by salmonids facing climate change

2021 ◽  
Author(s):  
Junnosuke Horita ◽  
Yoh Iwasa ◽  
Yuuya Tachiki
Keyword(s):  
Climate Change ◽  
Life History ◽  
Body Size ◽  
Evolutionary Dynamics ◽  
Environmental Changes ◽  
Threshold Value ◽  
Masu Salmon ◽  
Assessment Model ◽  
Oncorhynchus Masou Masou ◽  
One Year

AbstractThe enhanced or reduced growth of juvenile masu salmon (Oncorhynchus masou masou) may result from climate changes to their environment and thus impact on the eco-evolutionary dynamics of their life-history choices. Male juveniles with status, i.e., if their body size is larger than a threshold, stay in the stream and become resident males reproducing for multiple years, while those with smaller status, i.e., their body size is below the threshold, migrate to the ocean and return to the stream one year later to reproduce only once. Since juvenile growth is suppressed by the density of resident males, the fraction of resident males may stay in equilibrium or fluctuate wildly over a 2-year period. When the threshold value evolves, the convergence stable strategy may generate either an equilibrium or large fluctuations of male residents. If environmental changes occur faster than the rate of evolutionary adaptation, the eco-evolutionary dynamics exhibit a qualitative shift in the population dynamics. We also investigated the relative assessment models, in which individual life-history choices are made based on the individual’s relative status within the juvenile population. The eco-evolutionary dynamics are very different from the absolute assessment model, demonstrating the importance of understanding the mechanisms of life history choices when predicting the impacts of climate change.

scholarly journals Analysis of Flood Damage in the Seoul Metropolitan Government Using Climate Change Scenarios and Mitigation Technologies

2020 ◽  
Vol 13 (1) ◽  
pp. 105
Author(s):  
Jaekyoung Kim ◽  
Junsuk Kang
Keyword(s):  
Climate Change ◽  
Extreme Rainfall ◽  
Heavy Rain ◽  
Flood Damage ◽  
Climate Change Scenarios ◽  
Permeable Pavement ◽  
Metropolitan Government ◽  
Run Off ◽  
The Future ◽  
One Year

The social and economic damages caused by climate change have increased rapidly over the last several decades, with increasing instances of heatwaves, floods, and extreme rainfall. In 2011, heavy rain of 110.5 mm/hr caused great damage to the Seoul Metropolitan Government. Most of the causes of flooding in modern cities include a sharp increase in non-permeable pavement and a lack of water circulation facilities. It is predicted that heavy rainfalls will occur in the future, causing large amounts of local damage. In this study, possible future flood damages were analyzed using climate change scenarios based on the Korean Peninsula. ArcGIS was adopted to perform analyses, and Huff curves were employed for precipitation analysis. Water tanks, permeable pavement, and ecological waterways were installed as mitigation technologies. These three technologies can contribute to flooding mitigation by increasing the rainwater storage capacity. This study suggests that all floods can be reduced by RCP 8.5 by 2050 and 2060. Although there will be run-off after 2050, it is believed that technology will significantly reduce the volume and possibility of floods. It is recommended that a one-year analysis should be conducted in consideration of the maintenance aspects that will arise in the future.

scholarly journals Raising a Tantrum About Climate Change

Eos ◽  
2018 ◽  
Vol 99 ◽  
Author(s):  
Randy Showstack
Keyword(s):  
Climate Change ◽  
United States ◽  
The United States ◽  
Michael Mann ◽  
The World ◽  
One Year

One year ago today, President Trump vowed to exit the United States from the Paris climate pact. Eos discusses this with climatologist Michael Mann, author of the new book The Tantrum that Saved the World.

scholarly journals Rural youth employment through transitional beekeeping: In Jimma Zone, Ethiopia

2021 ◽  
Vol 8 (2) ◽  
pp. 159-166
Author(s):  
LALISA WENDIMU BIYENA
Keyword(s):  
Climate Change ◽  
Rural Youth ◽  
Sampling Procedure ◽  
Study Data ◽  
Text Data ◽  
Income Source ◽  
Development Interventions ◽  
Jimma Zone ◽  
Colony Number ◽  
One Year

Beekeeping is an interesting off farm practice for low-resource people that provide employment opportunities to rural youth in developing countries like Ethiopia. The study aimed to improve jobless youth income through beekeeping, create access to profitable honey market and contribute to climate change mitigation. Both purposive and random sampling procedure was used to select sample beekeeper and study area. It is case study data on 105 rural youths sampled from two districts and two kebele administrations representing traditional beekeeping farming in Jima Zone of Ethiopia. Descriptive statistics used to analyze quantitative data collected whereas on spot analysis also used to analyze qualitative data such as text data from interview transcripts. The results show that introduced transitional chefeka hive contributed significantly to the youths’ employment that relief them from dependency and low self-esteem in the community. On average hive productivity was increased from 6kg to 17.4 kg per hive and revenue generated encouraged the groups increase colony number in double fold and earn about US 6828.69 from honey and beeswax in one year. Moreover, accumulated revenue inclined them to start other income source activity besides beekeeping enterprise. Moreover, youth were found to be significantly more aware and responsible to mitigate recurrent climate change. Therefore, development interventions had better give emphasis to capacitate bee extension support system.

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