scholarly journals Using Statistical Downscaling of GCM Simulations to Assess Climate Change Impacts on Drought Conditions in the Northwest of Morocco

2014 ◽  
Vol 9 (2) ◽  
Author(s):  
Mohamed Elkharrim ◽  
Lahcen Bahi
Keyword(s):  
Climate Change ◽  
Statistical Downscaling ◽  
Climate Change Impacts ◽  
Drought Conditions ◽  
Assess Climate Change

scholarly journals A critical analysis of the carbon neutrality assumption in life cycle assessment of forest bioenergy systems

2018 ◽  
Vol 26 (1) ◽  
pp. 93-101 ◽  
Author(s):  
Weiguo Liu ◽  
Zhen Yu ◽  
Xinfeng Xie ◽  
Klaus von Gadow ◽  
Changhui Peng
Keyword(s):  
Climate Change ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Critical Analysis ◽  
Climate Change Impacts ◽  
Carbon Accounting ◽  
Carbon Neutrality ◽  
Forest Residue ◽  
Assess Climate Change ◽  
Accounting Errors

This study presents a critical analysis regarding the assumption of carbon neutrality in life cycle assessment (LCA) models that assess climate change impacts of bioenergy usage. We identified a complex of problems in the carbon neutrality assumption, especially regarding bioenergy derived from forest residues. In this study, we summarized several issues related to carbon neutral assumptions, with particular emphasis on possible carbon accounting errors at the product level. We analyzed errors in estimating emissions in the supply chain, direct and indirect emissions due to forest residue extraction, biogenic CO2 emission from biomass combustion for energy, and other effects related to forest residue extraction. Various modeling approaches are discussed in detail. We concluded that there is a need to correct accounting errors when estimating climate change impacts and proposed possible remedies. To accurately assess climate change impacts of bioenergy use, greater efforts are required to improve forest carbon cycle modeling, especially to identify and correct pitfalls associated with LCA accounting, forest residue extraction effects on forest fire risk and biodiversity. Uncertainties in accounting carbon emissions in LCA are also highlighted, and associated risks are discussed.

scholarly journals Development of an integrated computational tool to assess climate change impacts on water supply–demand and flood inundation

2013 ◽  
Vol 16 (3) ◽  
pp. 710-730 ◽  
Author(s):  
Pao-Shan Yu ◽  
Tao-Chang Yang ◽  
Chen-Min Kuo ◽  
Shien-Tsung Chen
Keyword(s):  
Climate Change ◽  
Water Supply ◽  
Impact Assessment ◽  
Climate Change Impacts ◽  
Water Shortage ◽  
Adaptation Strategy ◽  
Future Scenarios ◽  
Assess Climate Change ◽  
Southern Taiwan

This paper aims to propose a decision support system (DSS) for evaluating the climate change impacts on water supply–demand and inundation; and assessing the risks for water shortage and inundation under future scenarios. The proposed DSS framework is universal and flexible, which comprises five modules integrated by a geographic information system platform, including the modules of (1) scenario rainfall and temperature projection under climate change, (2) impact assessment of water supply–demand, (3) impact assessment of inundation, (4) assessment of vulnerability and risk, and (5) adaptation strategy. A case study in southern Taiwan was performed to demonstrate how the DSS provides information on the climate change impacts and risks under future scenarios. The information is beneficial to the authorities of water resources management for understanding the spatial risks for water shortage and inundation, and planning suitable adaptation strategies for the locations with larger risks.

scholarly journals Climate-driven zooplankton shifts could cause global declines in food quality for fish

2021 ◽  
Author(s):  
Ryan Heneghan ◽  
Jason Everett ◽  
Julia Blanchard ◽  
Patrick Sykes ◽  
Anthony Richardson
Keyword(s):  
Climate Change ◽  
Food Webs ◽  
Marine Ecosystem ◽  
Zooplankton Community ◽  
Climate Change Impacts ◽  
Ecosystem Model ◽  
Primary Energy ◽  
Phytoplankton Production ◽  
Marine Ecosystem Model ◽  
Assess Climate Change

Abstract Although zooplankton are the primary energy pathway from phytoplankton to fish, we understand little about how climate change will modify zooplankton communities and their role in marine ecosystems. Using a trait-based marine ecosystem model resolving key zooplankton groups, we assess climate change impacts on zooplankton community composition and implications for marine food webs globally. We find that future oceans favour food webs increasingly dominated by carnivorous (chaetognaths, jellyfish and carnivorous copepods) and gelatinous filter-feeding zooplankton (larvaceans and salps). By providing a direct energetic pathway from small phytoplankton to fish, the rise of gelatinous filter-feeders largely offsets the increase in trophic steps between primary producers and fish from declining phytoplankton production and increasing carnivorous zooplankton. However, our results indicate that future fish communities face not only reduced carrying capacity from falling primary production, but also lower quality diets as environmental conditions increasingly favour gelatinous zooplankton.

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