scholarly journals Mangrove blue carbon strategies for climate change mitigation are most effective at the national scale

2018 ◽  
Vol 14 (10) ◽  
pp. 20180251 ◽  
Author(s):  
Pierre Taillardat ◽  
Daniel A. Friess ◽  
Massimo Lupascu
Keyword(s):  
Climate Change ◽  
Climate Change Mitigation ◽  
Fossil Fuel ◽  
Global Scale ◽  
Blue Carbon ◽  
National Scale ◽  
Nationally Determined Contributions ◽  
Natural Carbon ◽  
Change Mitigation ◽  
Fossil Fuel Emissions

Carbon fixed by vegetated coastal ecosystems (blue carbon) can mitigate anthropogenic CO 2 emissions, though its effectiveness differs with the spatial scale of interest. A literature review compiling carbon sequestration rates within key ecosystems confirms that blue carbon ecosystems are the most efficient natural carbon sinks at the plot scale, though some overlooked biogeochemical processes may lead to overestimation. Moreover, the limited spatial extent of coastal habitats minimizes their potential at the global scale, only buffering 0.42% of the global fossil fuel carbon emissions in 2014. Still, blue carbon plays a role for countries with moderate fossil fuel emissions and extensive coastlines. In 2014, mangroves mitigated greater than 1% of national fossil fuel emissions for countries such as Bangladesh, Colombia and Nigeria. Considering that the Paris Agreement is based on nationally determined contributions, we propose that mangrove blue carbon may contribute to climate change mitigation at this scale in some instances alongside other blue carbon ecosystems.

Conservation of Blue Carbon Ecosystems for Climate Change Mitigation and Adaptation

2019 ◽  
pp. 965-996 ◽  
Author(s):  
Oscar Serrano ◽  
Jeffrey J. Kelleway ◽  
Catherine Lovelock ◽  
Paul S. Lavery
Keyword(s):  
Climate Change ◽  
Climate Change Mitigation ◽  
Blue Carbon ◽  
Mitigation And Adaptation ◽  
Change Mitigation

scholarly journals Invention and Transfer of Climate Change Mitigation Technologies on a Global Scale: A Study Drawing on Patent Data

2010 ◽  
Author(s):  
Antoine Dechezleprêtre ◽  
Matthieu Glachant ◽  
Ivan Hascic ◽  
Nick Johnstone ◽  
Yann Ménière
Keyword(s):  
Climate Change ◽  
Climate Change Mitigation ◽  
Global Scale ◽  
Patent Data ◽  
Change Mitigation

scholarly journals Tropospheric ozone and its precursors from the urban to the global scale from air quality to short-lived climate forcer

2014 ◽  
Vol 14 (23) ◽  
pp. 32709-32933 ◽  
Author(s):  
P. S. Monks ◽  
A. T. Archibald ◽  
A. Colette ◽  
O. Cooper ◽  
M. Coyle ◽  
...  
Keyword(s):  
Climate Change ◽  
Air Quality ◽  
Tropospheric Ozone ◽  
Ecosystem Health ◽  
Climate Change Mitigation ◽  
Global Scale ◽  
Background Ozone ◽  
Oxidation Chemistry ◽  
Change Mitigation

Abstract. Ozone holds a certain fascination in atmospheric science. It is ubiquitous in the atmosphere, central to tropospheric oxidation chemistry, yet harmful to human and ecosystem health as well as being an important greenhouse gas. It is not emitted into the atmosphere but is a by-product of the very oxidation chemistry it largely initiates. Much effort is focussed on the reduction of surface levels of ozone owing to its health impacts but recent efforts to achieve reductions in exposure at a country scale have proved difficult to achieve due to increases in background ozone at the zonal hemispheric scale. There is also a growing realisation that the role of ozone as a short-lived climate pollutant could be important in integrated air quality climate-change mitigation. This review examines current understanding of the processes regulating tropospheric ozone at global to local scales from both measurements and models. It takes the view that knowledge across the scales is important for dealing with air quality and climate change in a synergistic manner.

scholarly journals A framework for the cross-sectoral integration of multi-model impact projections: land use decisions under climate impacts uncertainties

2015 ◽  
Vol 6 (2) ◽  
pp. 447-460 ◽  
Author(s):  
K. Frieler ◽  
A. Levermann ◽  
J. Elliott ◽  
J. Heinke ◽  
A. Arneth ◽  
...  
Keyword(s):  
Climate Change ◽  
Decision Making ◽  
Land Use ◽  
Climate Change Mitigation ◽  
Large Scale ◽  
Impact Model ◽  
Natural Carbon ◽  
Change Mitigation ◽  
Biome Model

Abstract. Climate change and its impacts already pose considerable challenges for societies that will further increase with global warming (IPCC, 2014a, b). Uncertainties of the climatic response to greenhouse gas emissions include the potential passing of large-scale tipping points (e.g. Lenton et al., 2008; Levermann et al., 2012; Schellnhuber, 2010) and changes in extreme meteorological events (Field et al., 2012) with complex impacts on societies (Hallegatte et al., 2013). Thus climate change mitigation is considered a necessary societal response for avoiding uncontrollable impacts (Conference of the Parties, 2010). On the other hand, large-scale climate change mitigation itself implies fundamental changes in, for example, the global energy system. The associated challenges come on top of others that derive from equally important ethical imperatives like the fulfilment of increasing food demand that may draw on the same resources. For example, ensuring food security for a growing population may require an expansion of cropland, thereby reducing natural carbon sinks or the area available for bio-energy production. So far, available studies addressing this problem have relied on individual impact models, ignoring uncertainty in crop model and biome model projections. Here, we propose a probabilistic decision framework that allows for an evaluation of agricultural management and mitigation options in a multi-impact-model setting. Based on simulations generated within the Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP), we outline how cross-sectorally consistent multi-model impact simulations could be used to generate the information required for robust decision making. Using an illustrative future land use pattern, we discuss the trade-off between potential gains in crop production and associated losses in natural carbon sinks in the new multiple crop- and biome-model setting. In addition, crop and water model simulations are combined to explore irrigation increases as one possible measure of agricultural intensification that could limit the expansion of cropland required in response to climate change and growing food demand. This example shows that current impact model uncertainties pose an important challenge to long-term mitigation planning and must not be ignored in long-term strategic decision making.

The economic value of fisheries, blue carbon, and nutrient cycling in global marine forests

2021 ◽  
Author(s):  
Aaron Matthius Eger ◽  
Ezequiel Marzinelli ◽  
Rodrigo Baes ◽  
Caitlin Blain ◽  
Laura Blamey ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Nutrient Cycling ◽  
Nitrogen Removal ◽  
Climate Change Mitigation ◽  
Economic Value ◽  
Blue Carbon ◽  
Kelp Forests ◽  
Marine Management ◽  
Change Mitigation

Underwater kelp forests have provided valuable ecosystem services for millennia. However, the global economic value of those services is largely unresolved. Kelp forests are also diminishing globally and efforts to manage these valuable resources are hindered without accurate estimates of the services kelp forests provide to society. We present the first global economic estimation of services - fisheries production, nutrient cycling, and carbon removal - provided by four major forest forming kelp genera (Macrocystis, Nereocystis, Ecklonia, and Laminaria). Each of these genera provides between $135,200 and $177,100/ ha/ year. Collectively, they contribute $684 billion/year worldwide. These values are primarily driven by fisheries and nitrogen removal, but kelp forests also have the potential to sequester 2.7 megatons of carbon from the atmosphere/year and may be considered blue carbon systems valuable for climate change mitigation. These findings highlight the value of kelp forests to society and will enable informed marine management decisions.

scholarly journals Invention and Transfer of Climate Change Mitigation Technologies on a Global Scale: A Study Drawing on Patent Data

2009 ◽  
Author(s):  
Antoine Dechezleprêtre ◽  
Matthieu Glachant ◽  
Ivan Hascic ◽  
Nick Johnstone ◽  
Yann Ménière
Keyword(s):  
Climate Change ◽  
Climate Change Mitigation ◽  
Global Scale ◽  
Patent Data ◽  
Change Mitigation
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