Article
Meteorology & Atmospheric Sciences
Harpreet Kaur, Govindasamy Bala, Ashwin K. Seshadri
Summary: Previous studies have found that climate sensitivity is smaller for solar radiative forcing compared to an equivalent CO2 radiative forcing. This study investigates the causes for this difference using the NCAR CAM4 model and estimates the contributions of different feedbacks. The results suggest that the difference in feedback between the two cases is mainly due to differences in lapse rate, water vapor, and cloud feedbacks.
JOURNAL OF CLIMATE
(2023)
Article
Geosciences, Multidisciplinary
J. G. Virgin, C. G. Fletcher
Summary: This study analyzes the impact of solar and CO2 forcings in the G1 experiment using models and finds that both forcings have a net positive effect on the energy balance at the top of the atmosphere, increasing the net G1 forcing. The main sources of positive adjustments come from stratospheric temperature and shortwave cloud adjustments, with reductions in boundary layer clouds causing the non-linear representation of net radiative adjustments in G1.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Kevin R. Fingerman, Jerome Qiriazi, Cassidy L. Barrientos, Max Blasdel, Jeffrey M. Comnick, Andrew R. Harris, Carisse Geronimo, Chih-Wei Hsu, Jeffrey M. Kane, Elaine Oneil, Sabrinna Rios-Romero, Luke W. Rogers, Mark Severy, Micah C. Wright
Summary: California is facing a crisis on its forested landscapes due to aggressive logging, fire suppression, and climate change. State policymakers have turned to biomass electricity generation as a potential solution, but the climate and air pollution impacts are still unclear. The California Biomass Residue Emissions Characterization (C-BREC) model provides a framework to assess the impacts of biopower from forest residues and suggests that utilization of residue offers the best climate and air quality performance.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Green & Sustainable Science & Technology
L. Gustavsson, T. Nguyen, R. Sathre, U. Y. A. Tettey
Summary: Increasing forest productivity can reduce net carbon dioxide emissions, but setting aside forests for carbon storage and reducing biomass harvesting may not be an effective strategy for climate mitigation.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Geosciences, Multidisciplinary
Bosong Zhang, Ming Zhao, Haozhe He, Brian J. Soden, Zhihong Tan, Baoqiang Xiang, Chenggong Wang
Summary: This study investigates the relationship between climate sensitivity and the spatial pattern of radiative forcing. The results show that the climate is nearly twice as sensitive to Southern Ocean forcing compared to tropical forcing. These findings have important implications for understanding the impact of different forcings on climate.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Agronomy
Cheyenne Lei, Jiquan Chen, G. Philip Robertson
Summary: Changes in land surface albedo can impact ecosystem energy balance and climate. This study in southwest Michigan, USA, explored the albedo of six bioenergy cropping systems and found significant variations among different crops, with cellulosic crops being more reflective. Further management interventions are needed to maximize the positive climate benefits of bioenergy crops.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2023)
Article
Meteorology & Atmospheric Sciences
Nadir Jeevanjee, Jacob T. Seeley, David Paynter, Stephan Fueglistaler
Summary: Clear-sky CO2 forcing varies significantly globally, primarily influenced by surface temperature, stratospheric temperature, and column relative humidity. The difference in forcing between regions is mainly due to the surface-stratosphere temperature contrast. In tropical and midlatitude regions, the presence of water vapor modulates the forcing by affecting atmospheric emissions.
JOURNAL OF CLIMATE
(2021)
Article
Multidisciplinary Sciences
Yanfeng Wang, Ping Huang
Summary: Fire emissions in South America consistently decreased from 2003 to 2019, which can be attributed to unfavorable climatic conditions and the phase transition of the Atlantic Multidecadal Oscillation. Despite anthropogenic forcing exacerbating drought and fire risks, fire emissions and aerosol pollution in the southern Amazon and Pantanal region showed a consistent long-term decrease. This decrease is linked to climatic conditions that hindered fire intensification and spread, including increased humidity and slower surface wind speed.
NATURE COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
J. Giuntoli, J. Barredo, V Avitabile, A. Camia, N. E. Cazzaniga, G. Grassi, G. Jasinevicius, R. Jonsson, L. Marelli, N. Robert, A. Agostini, S. Mubareka
Summary: The debate on forest bioenergy sustainability has primarily focused on carbon emissions and overlooked the biodiversity perspective. This study reviews the impacts of specific bioenergy pathways on biodiversity and carbon emissions, presenting a matrix that highlights win-win and lose-lose options. The findings show that some pathways mitigate carbon emissions without deteriorating ecosystem condition, while others are detrimental to ecosystems and offer little carbon mitigation. The study concludes that eliminating negative options is more fruitful than seeking agreement on best options in the polarised debate.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Multidisciplinary Sciences
Casey J. Wall, Joel R. Norris, Anna Possner, Daniel T. Mccoy, Isabel L. Mccoy, Nicholas J. Lutsko
Summary: This study quantifies the relationship between anthropogenic sulfate aerosols and low-level clouds using satellite observations, and estimates the range of equilibrium climate sensitivity (ECS) by constraining the associated radiative forcing. The results indicate that the uncertainty in aerosol forcing is smaller and ECS may be larger than previously assessed.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Bo Fu, Bengang Li, Thomas Gasser, Shu Tao, Philippe Ciais, Shilong Piao, Yves Balkanski, Wei Li, Tianya Yin, Luchao Han, Yunman Han, Siyuan Peng, Jing Xu
Summary: The study reveals that global greenhouse gas emissions are primarily concentrated in the United States, the European Union, and China, while developing countries' aerosol emissions have a more significant negative impact on global radiative forcing. Implementation of measures to improve air quality in developing countries is expected to reduce the negative impact of aerosols but may also exacerbate global warming.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Forestry
C. Tattersall Smith, Christopher Preece, Inge Stupak, Russell D. Briggs, Bruna Barusco, Brian E. Roth, Ivan J. Fernandez
Summary: Global trends indicate increasing forest management intensity due to rising demand for forest products and decreasing forest area. However, a study in north-central Maine suggests that whole-tree harvesting for bio-economy feedstock production in spruce-fir forests is sustainable, with no significant negative impacts on tree and stand-level growth and nutrition observed. Further research is needed to confirm these findings over the entire rotation period.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Fabien Paulot, David Paynter, Vaishali Naik, Sergey Malyshev, Raymond Menzel, Larry W. Horowitz
Summary: The study describes the representation of hydrogen (H-2) in the GFDL-AM4.1 model and highlights the importance of modulating v(d)(H-2) by soil moisture, temperature, and soil carbon content to accurately capture the distribution of surface H-2. It is estimated that soil removal of H-2 increases with warming, leading to indirect radiative forcing primarily due to increasing CH4 lifetime and stratospheric water vapor production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Geosciences, Multidisciplinary
Jia-Rui Shi, Young-Oh Kwon, Susan E. Wijffels
Summary: Separating the climate response to external forcing from internal climate variability is a challenge. This study focuses on North Pacific subsurface temperature responses driven by anthropogenic aerosol emissions. The findings show a nonmonotonic temporal response and a characteristic zonal-mean pattern associated with the aerosol forcing.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Aerospace
Lena Wilhelm, Klaus Gierens, Susanne Rohs
Summary: Persistent contrails and contrail cirrus have a larger impact on climate than all CO2 emissions from global aviation since the introduction of jet engines, but there are uncertainties in measuring this impact. Weather variability plays a major role in the uncertainty range of contrail cirrus radiative forcing.
Article
Agronomy
Piritta Torssonen, Antti Kilpelainen, Harri Strandman, Seppo Kellomaki, Kirsti Jylha, Antti Asikainen, Heli Peltola
GLOBAL CHANGE BIOLOGY BIOENERGY
(2016)
Article
Forestry
Tarit Kumar Baul, Ashraful Alam, Antti Ikonen, Harri Strandman, Antti Asikainen, Heli Peltola, Antti Kilpelainen
Article
Forestry
Tero Heinonen, Timo Pukkala, Seppo Kellomaki, Harri Strandman, Antti Asikainen, Ari Venalainen, Heli Peltola
CANADIAN JOURNAL OF FOREST RESEARCH
(2018)
Article
Forestry
L. ALRahahleh, A. Kilpelainen, V. P. Ikonen, H. Strandman, A. Asikainen, A. Venalainen, J. Kaurola, J. Kangas, H. Peltola
EUROPEAN JOURNAL OF FOREST RESEARCH
(2018)
Article
Forestry
Laith ALRahahleh, Antti Kilpelainen, Veli-Pekka Ikonen, Harri Strandman, Ari Venalainen, Heli Peltola
Article
Forestry
Seppo Kellomaki, Harri Strandman, Tero Heinonen, Antti Asikainen, Ari Venalainen, Heli Peltola
Article
Forestry
S. Kellomaki, H. Strandman, H. Peltola
Article
Forestry
Tarit Kumar Baul, Ashraful Alam, Harri Strandman, Jyri Seppala, Heli Peltola, Antti Kilpelainen
CANADIAN JOURNAL OF FOREST RESEARCH
(2020)
Article
Forestry
V. -P. Ikonen, A. Kilpelainen, H. Strandman, A. Asikainen, A. Venalainen, H. Peltola
EUROPEAN JOURNAL OF FOREST RESEARCH
(2020)
Article
Agricultural Engineering
M. Hiltunen, H. Strandman, A. Kilpelainen
Summary: Increasing stocking density and N fertilization were generally the most optimal forest management scenarios in both species, balancing climate impacts and economic profitability. The initially mature age structure showed the lowest climate impact but highest economic profitability.
BIOMASS & BIOENERGY
(2021)
Article
Forestry
V. -P. Ikonen, A. Kilpelainen, A. Zubizarreta-Gerendiain, H. Strandman, A. Asikainen, A. Venalainen, J. Kaurola, J. Kangas, H. Peltola
CANADIAN JOURNAL OF FOREST RESEARCH
(2017)
Article
Forestry
Ashraful Alam, Harri Strandman, Seppo Kellomaki, Antti Kilpelainen
CANADIAN JOURNAL OF FOREST RESEARCH
(2017)
Article
Energy & Fuels
A. Kilpelainen, H. Strandman, T. Gronholm, V. -P. Ikonen, P. Torssonen, S. Kellomaki, H. Peltola
BIOENERGY RESEARCH
(2017)
Article
Agricultural Engineering
T. K. Baul, A. Alam, H. Strandman, A. Kilpelainen
BIOMASS & BIOENERGY
(2017)
Article
Forestry
L. Alrahahleh, V. -P. Ikonen, A. Kilpelainen, P. Torssonen, H. Strandman, A. Asikainen, J. Kaurola, A. Venalainen, H. Peltola
CANADIAN JOURNAL OF FOREST RESEARCH
(2017)