scholarly journals Climate & Coronavirus: Competing Agenda?

2020 ◽  
pp. 93-104
Author(s):  
Sergey Roginko ◽  

The article analyzes trends in the global climate agenda and the impact of the COVID-19 pandemic on it. Analysis of the events series associated with the pandemic and its impact on the economies of leading countries and on the prospects for reducing greenhouse gas emissions is carried out. Article also focuses on the climate-related social movements, including Fridays for Future initiative and Flightshaming flashmobs. Analysis of the origin of these movements is carried out, with a special reference to the real goals and beneficiaries of this type of activity on the global level. A connection is traced between the origination of the said movements and actual state of the global scientific discourse on the climate change issues, including the anthropogenic warming hypothesis. Special attention is paid to the reaction of the world and European elites to the situation with coronavirus, including the new approaches, comparing the effects of global warming with those of coronavirus pandemic. Attempts to counter the shift of the global agenda from the climate change issues to the real action against global coronavirus pandemic, carried out both at the EU level and at the global level are discussed. New EU goals in the area of GHG emission reduction, set forth in the EU State of the Union address of September 16, 2020, are analyzed, in parallel with the assessment of the economic situation in the EU countries after the first wave of the coronavirus pandemic and the EU activities during this period.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yong Zhang ◽  
Lu-yu Liu ◽  
Yi Liu ◽  
Man Zhang ◽  
Cheng-bang An

AbstractWithin the mountain altitudinal vegetation belts, the shift of forest tree lines and subalpine steppe belts to high altitudes constitutes an obvious response to global climate change. However, whether or not similar changes occur in steppe belts (low altitude) and nival belts in different areas within mountain systems remain undetermined. It is also unknown if these, responses to climate change are consistent. Here, using Landsat remote sensing images from 1989 to 2015, we obtained the spatial distribution of altitudinal vegetation belts in different periods of the Tianshan Mountains in Northwestern China. We suggest that the responses from different altitudinal vegetation belts to global climate change are different. The changes in the vegetation belts at low altitudes are spatially different. In high-altitude regions (higher than the forest belts), however, the trend of different altitudinal belts is consistent. Specifically, we focused on analyses of the impact of changes in temperature and precipitation on the nival belts, desert steppe belts, and montane steppe belts. The results demonstrated that the temperature in the study area exhibited an increasing trend, and is the main factor of altitudinal vegetation belts change in the Tianshan Mountains. In the context of a significant increase in temperature, the upper limit of the montane steppe in the eastern and central parts will shift to lower altitudes, which may limit the development of local animal husbandry. The montane steppe in the west, however, exhibits the opposite trend, which may augment the carrying capacity of pastures and promote the development of local animal husbandry. The lower limit of the nival belt will further increase in all studied areas, which may lead to an increase in surface runoff in the central and western regions.


2013 ◽  
Vol 2013 ◽  
pp. 1-18 ◽  
Author(s):  
Yanyun Liu ◽  
Lian Xie ◽  
John M. Morrison ◽  
Daniel Kamykowski

The regional impact of global climate change on the ocean circulation around the Galápagos Archipelago is studied using the Hybrid Coordinate Ocean Model (HYCOM) configured for a four-level nested domain system. The modeling system is validated and calibrated using daily atmospheric forcing derived from the NCEP/NCAR reanalysis dataset from 1951 to 2007. The potential impact of future anthropogenic global warming (AGW) in the Galápagos region is examined using the calibrated HYCOM with forcing derived from the IPCC-AR4 climate model. Results show that although the oceanic variability in the entire Galápagos region is significantly affected by global climate change, the degree of such effects is inhomogeneous across the region. The upwelling region to the west of the Isabella Island shows relatively slower warming trends compared to the eastern Galápagos region. Diagnostic analysis suggests that the variability in the western Galápagos upwelling region is affected mainly by equatorial undercurrent (EUC) and Panama currents, while the central/east Galápagos is predominantly affected by both Peru and EUC currents. The inhomogeneous responses in different regions of the Galápagos Archipelago to future AGW can be explained by the incoherent changes of the various current systems in the Galápagos region as a result of global climate change.


2015 ◽  
Vol 01 (03) ◽  
pp. 423-446
Author(s):  
Hongyuan Yu

Climate change has emerged as one of the top security challenges in the early 21st century. It is now widely acknowledged that international cooperation and collective action will be the key to addressing challenges caused by climate change. This article will give an explanation on the evolution of the global climate change governance system by linking history, governance, and diplomacy. The challenge of climate change involves not only international competition for new energy but also related adjustments in the global governance pattern. Specifically, the carbon emission reduction to be discussed at the 2015 UN Paris Climate Conference will still be problematic, and negotiations with regard to financing mechanisms between developed and developing countries will remain in doubt. Furthermore, the attitudes of the two sides toward common but differentiated responsibilities (CBDR) and the intended nationally determined contributions (INDCs) are disparate. In addition, negotiations among China, the UN, the U.S., and the EU are decisive in tackling this tricky matter. Finally, this article outlines some potential diplomatic options for China's future developmental trend.


Author(s):  
Viktoriia Sydorenko ◽  

This article is devoted to an overview of such a category of migrants as climate refugees. The author pays attention to the general characteristics of the impact of global climate change on migrants. Particular attention is paid to the disclosure of the term “climate refugee”, the reasons for the emergence of this category of people, as well as the problems of counting climate refugees. The author also provides examples for solving these problems.


2021 ◽  
Vol 73 (05) ◽  
pp. 8-8
Author(s):  
Pam Boschee

Carbon credits, carbon taxes, and emissions trading systems are familiar terms in discussions about limiting global warming, the Paris Agreement, and net-zero emissions goals. A more recent addition to the glossary of climate policy is “carbon tariff.” While the concept is not new, it recently surfaced in nascent policymaking in the EU. In 2019, European Commission President Ursula von der Leyen proposed a “carbon border adjustment mechanism (CBAM)” as part of a proposed green deal. In March, the European Parliament adopted a resolution on a World Trade Organization (WTO)-compatible CBAM. A carbon tariff, or the EU’s CBAM, is a tax applied to carbon-intensive imports. Countries that have pledged to be more ambitious in reducing emissions—and in some cases have implemented binding targets—may impose carbon costs on their own businesses. Being eyed now are cross-border or overseas businesses that make products in countries in which no costs are imposed for emissions, resulting in cheaper carbon-intensive goods. Those products are exported to the countries aiming for reduced emissions. The concern lies in the risk of locally made goods becoming unfairly disadvantaged against competitors that are not taking similar steps to deal with climate change. A carbon tariff is being considered to level the playing field: local businesses in countries applying a tariff can better compete as climate policies evolve and are adopted around the world. Complying with WTO rules to ensure fair treatment, the CBAM will be imposed only on high-emitting industries that compete directly with local industries paying a carbon price. In the short term, these are likely to be steel, chemicals, fertilizers, and cement. The Parliament’s statement introduced another term to the glossary of climate policy: carbon leakage. “To raise global climate ambition and prevent ‘carbon leakage,’ the EU must place a carbon price on imports from less climate-ambitious countries.” It refers to the situation that may occur if businesses were to transfer production to other countries with laxer emission constraints to avoid costs related to climate policies. This could lead to an increase in total emissions in the higher-emitting countries. “The resolution underlines that the EU’s increased ambition on climate change must not lead to carbon leakage as global climate efforts will not benefit if EU production is just moved to non-EU countries that have less ambitious emissions rules,” the Parliament said. It also emphasized the tariff “must not be misused to further protectionism.” A member of the environment committee, Yannick Jadot, said, “It is a major political and democratic test for the EU, which must stop being naïve and impose the same carbon price on products, whether they are produced in or outside the EU, to ensure the most polluting sectors also take part in fighting climate change and innovate towards zero carbon. This will give us the best chance of remaining below the 1.5°C warming limit, whilst also pushing our trading partners to be equally ambitious in order to enter the EU market.” The Commission is expected to present a legislative proposal on a CBAM in the second quarter of 2021 as part of the European Green Deal.


2021 ◽  
Author(s):  
Marine Prieur ◽  
Alexander C. Whittaker ◽  
Fritz Schlunegger ◽  
Tor O. Sømme ◽  
Jean Braun ◽  
...  

<p>Sedimentary dynamics and fluxes are influenced by both autogenic and allogenic forcings. A better understanding of the evolution of sedimentary systems through time and space requires us to decipher, and therefore to characterise, the impact of each of these on the Earth’s landscape. Given the current increase in the concentration of atmospheric carbon, studying the impact of rapid and global climate changes is of particular importance at the present time. Such events have been clearly defined in the geologic record. Among them, the Paleocene-Eocene Thermal Maximum (PETM) has been extensively studied worldwide and represents a possible analogue of the rapid current climate warming.</p><p>The present project focuses on the Southern Pyrenees (Spain) where excellent exposures of the Paleocene-Eocene interval span a large range of depositional environments from continental to deep-marine. These conditions allow us to collect data along the whole depositional system in order to document changes in sediment fluxes and paleohydraulic conditions. Because hydrological conditions have an impact on sediment transport through hydrodynamics, paleoflow reconstructions can shed light on changes in sediment dynamics. This information is reconstructed from the statistical distributions of channel morphologies, characteristic system dimensions including bankfull channel depth and width, and grain-sizes.</p><p>With this approach, our aim is to provide both qualitative and quantitative assessments of the magnitude and extent of the perturbation of sedimentary fluxes along an entire source-to-sink system during an episode of extreme climate change. This will lead to a better understanding of the impact of abrupt climate change on earth surface systems in mid-latitudinal areas, with possible implications for current climate adaptation policy.</p><p>This research is carried out in the scope of the lead author’s PhD project and is part of the S2S-FUTURE European Marie Skłodowska-Curie ITN (Grant Agreement No 860383).</p>


Author(s):  
Maria Polozhikhina ◽  

Climate conditions remain one of the main risk factors for domestic agriculture, and the consequences of global climate change are ambiguous in terms of prospects for agricultural production in Russia. This paper analyzes the impact of climate change on the country’s food security from the point of view of its self-sufficiency in grain primarily. Specific conditions prevailing on the Crimean peninsula are also considered.


2014 ◽  
Vol 937 ◽  
pp. 663-668
Author(s):  
Qiu Jing Li ◽  
Xiao Li Hou ◽  
Li Xue ◽  
Hong Yue Chen ◽  
Yun Ting Hao

Climate change refers to man-made changes in our climate, which is caused by changes in temperature, precipitation, and CO2. There is a lot of data coming from all over the world indicating that phenology of garden plants and biodiversity are being impacted by climate change. In the context of climate change, landscape plants can enhance carbon sink function, improve plant design, and mitigate climate change and so on. To determine the impact of these changes on garden plants, scientists would need to strengthen the study of garden plants under global climate change, including different garden type responses to climate change, invaliding species phenology study, extreme weather impacts on landscape plant phenology, the dominant factor of affecting garden plants in different regions, interactions of multiple environmental factors on influence mechanism of garden plants.


2014 ◽  
Vol 11 (5) ◽  
pp. 4579-4638 ◽  
Author(s):  
M. C. Peel ◽  
R. Srikanthan ◽  
T. A. McMahon ◽  
D. J. Karoly

Abstract. Two key sources of uncertainty in projections of future runoff for climate change impact assessments are uncertainty between Global Climate Models (GCMs) and within a GCM. Within-GCM uncertainty is the variability in GCM output that occurs when running a scenario multiple times but each run has slightly different, but equally plausible, initial conditions. The limited number of runs available for each GCM and scenario combination within the Coupled Model Intercomparison Project phase 3 (CMIP3) and phase 5 (CMIP5) datasets, limits the assessment of within-GCM uncertainty. In this second of two companion papers, the primary aim is to approximate within-GCM uncertainty of monthly precipitation and temperature projections and assess its impact on modelled runoff for climate change impact assessments. A secondary aim is to assess the impact of between-GCM uncertainty on modelled runoff. Here we approximate within-GCM uncertainty by developing non-stationary stochastic replicates of GCM monthly precipitation and temperature data. These replicates are input to an off-line hydrologic model to assess the impact of within-GCM uncertainty on projected annual runoff and reservoir yield. To-date within-GCM uncertainty has received little attention in the hydrologic climate change impact literature and this analysis provides an approximation of the uncertainty in projected runoff, and reservoir yield, due to within- and between-GCM uncertainty of precipitation and temperature projections. In the companion paper, McMahon et al. (2014) sought to reduce between-GCM uncertainty by removing poorly performing GCMs, resulting in a selection of five better performing GCMs from CMIP3 for use in this paper. Here we present within- and between-GCM uncertainty results in mean annual precipitation (MAP), temperature (MAT) and runoff (MAR), the standard deviation of annual precipitation (SDP) and runoff (SDR) and reservoir yield for five CMIP3 GCMs at 17 world-wide catchments. Based on 100 stochastic replicates of each GCM run at each catchment, within-GCM uncertainty was assessed in relative form as the standard deviation expressed as a percentage of the mean of the 100 replicate values of each variable. The average relative within-GCM uncertainty from the 17 catchments and 5 GCMs for 2015–2044 (A1B) were: MAP 4.2%, SDP 14.2%, MAT 0.7%, MAR 10.1% and SDR 17.6%. The Gould–Dincer Gamma procedure was applied to each annual runoff time-series for hypothetical reservoir capacities of 1× MAR and 3× MAR and the average uncertainty in reservoir yield due to within-GCM uncertainty from the 17 catchments and 5 GCMs were: 25.1% (1× MAR) and 11.9% (3× MAR). Our approximation of within-GCM uncertainty is expected to be an underestimate due to not replicating the GCM trend. However, our results indicate that within-GCM uncertainty is important when interpreting climate change impact assessments. Approximately 95% of values of MAP, SDP, MAT, MAR, SDR and reservoir yield from 1× MAR or 3× MAR capacity reservoirs are expected to fall within twice their respective relative uncertainty (standard deviation/mean). Within-GCM uncertainty has significant implications for interpreting climate change impact assessments that report future changes within our range of uncertainty for a given variable – these projected changes may be due solely to within-GCM uncertainty. Since within-GCM variability is amplified from precipitation to runoff and then to reservoir yield, climate change impact assessments that do not take into account within-GCM uncertainty risk providing water resources management decision makers with a sense of certainty that is unjustified.


Daedalus ◽  
2021 ◽  
Vol 150 (4) ◽  
pp. 7-26
Author(s):  
Allen Isaacman ◽  
Muchaparara Musemwa

Abstract This essay explores the multiple ways in which the nexuses between water scarcity and climate change are socially and historically grounded in ordinary people's lived experiences and are embedded in specific fields of power. Here we specifically delineate four critical dimensions in which the water crises confronting the African continent in an age of climate change are clearly expressed: the increasing scarcity, privatization, and commodification of water in urban centers; the impact of large dams on the countryside; the health consequences of water shortages and how they, in turn, affect other aspects of people's experiences, sociopolitical dynamics, and well-being, broadly conceived; and water governance and the politics of water at the local, national, and transnational levels. These overarching themes form the collective basis for the host of essays in this volume that provide rich accounts of conflicts and struggles over water use and how these tensions have been mitigated.


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