Now showing items 221-240 of 478

    • Under what conditions will the paris process produce a cycle of increasing ambition sufficient to reach the 2°c goal? 

      Sælen, Håkon (Journal article; Peer reviewed, 2020)
      The Paris Agreement establishes a cycle where parties submit their nationally determined contributions (NDCs) every five years. First-round NDCs fail to put emissions on a path consistent with achieving the Agreement’s 2°C ...
    • The global methane budget 2000-2017 

      Saunois, Marielle; Stavert, Ann R.; Poulter, Ben; Bousquet, Philippe; Canadell, Josep G.; Jackson, Robert B.; Raymond, Peter A.; Dlugokencky, Edward J.; Houweling, Sander; Patra, Prabir K.; Ciais, Philippe; Arora, Vivek K.; Bastviken, David; Bergamaschi, Peter; Blake, Donald R.; Brailsford, Gordon; Bruhwiler, Lori; Carlson, Kimberly M.; Carrol, Mark; Castaldi, Simona; Chandra, Naveen; Crevoisier, Cyril; Crill, Patrick M.; Covey, Kristofer; Curry, Charles L.; Etiope, Giuseppe; Frankenberg, Christian; Gedney, Nicola; Hegglin, Michaela I.; Hoglund-Isaksson, Lena; Hugelius, Gustaf; Ishizawa, Misa; Ito, Akihiko; Janssens-Maenhout, Greet; Jensen, Katherine M.; Joos, Fortunat; Kleinen, Thomas; Krummel, Paul B.; Langenfelds, Ray L.; Laruelle, Goulven G.; Liu, Licheng; Machida, Toshinobu; Maksyutov, Shamil; McDonald, Kyle C.; McNorton, Joe; Miller, Paul A.; Melton, Joe R.; Morino, Isamu; Müller, Jurek; Murguia-Flores, Fabiola; Naik, Vaishali; Niwa, Yosuke; Noce, Sergio; O'Doherty, Simon; Parker, Robert J.; Peng, Changhui; Peng, Shushi; Peters, Glen Philip; Prigent, Catherine; Prinn, Ronald G.; Ramonet, Michel; Regnier, Pierre; Riley, William J.; Rosentreter, Judith A.; Segers, Arjo; Simpson, Isobel J.; Shi, Hao; Smith, Steven J.; Steele, L. Paul; Thornton, Brett F.; Tian, Hanqin; Tohjima, Yasunori; Tubiello, Francesco N.; Tsuruta, Aki; Viovy, Nicolas; Voulgarakis, Apostolos; Weber, Thomas S.; Van Weele, Michiel; Van Der Werf, Guido R.; Weiss, Ray F.; Worthy, Doug; Wunch, Debra; Yin, Yi; Yoshida, Yukio; Zhang, Wenxin; Zhang, Zhen; Zhao, Yuanhong; Zheng, Bo; Zhu, Qing; Zhu, Qiuan; Zhuang, Qianlai (Journal article; Peer reviewed, 2020)
      Understanding and quantifying the global methane (CH4) budget is important for assessing realistic pathways to mitigate climate change. Atmospheric emissions and concentrations of CH4 continue to increase, making CH4 the ...
    • Black Carbon and Precipitation: An Energetics Perspective 

      Sand, Maria; Samset, Bjørn Hallvard; Tsigaridis, Kostas; Bauer, Susanne E.; Myhre, Gunnar (Journal article; Peer reviewed, 2020)
      Black carbon (BC) aerosols influence precipitation through a range of processes. The climate response to the presence of BC is however highly dependent on its vertical distribution. Here, we analyze the changes in the ...
    • How aerosols and greenhouse gases influence the diurnal temperature range 

      Stjern, Camilla Weum; Samset, Bjørn Hallvard; Boucher, Olivier; Iversen, Trond; Lamarque, Jean-Francois; Myhre, Gunnar; Shindell, Drew; Takemura, Toshihiko (Journal article; Peer reviewed, 2020)
      The diurnal temperature range (DTR) (or difference between the maximum and minimum temperature within a day) is one of many climate parameters that affects health, agriculture and society. Understanding how DTR evolves ...
    • Delayed emergence of a global temperature response after emission mitigation 

      Samset, Bjørn Hallvard; Fuglestvedt, Jan S.; Lund, Marianne Tronstad (Journal article; Peer reviewed, 2020)
      A major step towards achieving the goals of the Paris agreement would be a measurable change in the evolution of global warming in response to mitigation of anthropogenic emissions. The inertia and internal variability of ...
    • Historical total ozone radiative forcing derived from CMIP6 simulations 

      Skeie, Ragnhild Bieltvedt; Myhre, Gunnar; Hodnebrog, Øivind; Cameron-Smith, Philip J.; Deushi, Makoto; Hegglin, Michaela I.; Horowitz, Larry W.; Kramer, Ryan J.; Michou, Martine; Mills, Michael J.; Oliviè, Dirk Jan Leo; O’Connor, Fiona M.; Paynter, David; Samset, Bjørn Hallvard; Sellar, Alistair; Shindell, Drew; Takemura, Toshihiko; Tilmes, Simone; Wu, Tongwen (Journal article; Peer reviewed, 2020)
      Radiative forcing (RF) time series for total ozone from 1850 up to the present day are calculated based on historical simulations of ozone from 10 climate models contributing to the Coupled Model Intercomparison Project ...
    • Mapping ice in the Norwegian Arctic – on the edge between science and policy 

      Bay-Larsen, Ingrid Agathe; Bjørndal, Tone Gjesdal; Hermansen, Erlend Andre T. (Journal article; Peer reviewed, 2020)
      n the Norwegian Arctic, petroleum exploration is prohibited north of the ice edge (the zone between solid sea ice and open ocean); the mapping and definition of the ice edge becomes the boundary for petroleum exploration. ...
    • The Spectral Nature of Stratospheric Temperature Adjustment and its Application to Halocarbon Radiative Forcing 

      Shine, Keith Peter; Myhre, Gunnar (Journal article; Peer reviewed, 2020)
      Stratospheric temperature adjustment (STA) is often a significant component of greenhouse gas radiative forcing (RF), for both the most widely used definition of RF and effective radiative forcing. It is well established ...
    • European anthropogenic AFOLU greenhouse gas emissions: A review and benchmark data 

      Petrescu, Ana Maria Roxana; Peters, Glen Philip; Janssens-Maenhout, Greet; Ciais, Philippe; Tubiello, Francesco N.; Grassi, Giacomo; Nabuurs, Gert-Jan; Leip, Adrian; Carmona-Garcia, Gema; Winiwarter, Wilfried; Höglund-Isaksson, Lena; Günther, Dirk; Solazzo, Efisio; Kiesow, Anja; Bastos, Ana; Pongratz, Julia; Nabel, Julia E.M.S.; Conchedda, Giulia; Pilli, Roberto; Andrew, Robbie; Schelhaas, Mart-Jan; Dolman, Albertus J. (Journal article; Peer reviewed, 2020)
      Emission of greenhouse gases (GHGs) and removals from land, including both anthropogenic and natural fluxes, require reliable quantification, including estimates of uncertainties, to support credible mitigation action under ...
    • Achievements and needs for the climate change scenario framework 

      O'Neil, Brian C.; Carter, Timothy R.; Ebi, Kristie L.; Harrison, Paula A.; Kemp-Benedict, Eric; Kok, Kasper; Kriegler, Elmar; Preston, Benjamin l.; Riahi, Keywan; Sillmann, Jana; Ruijven, Bas J. van; Vuuren, Detlef Van; Carlisle, David; Conde, Cecilia; Fuglestvedt, Jan S.; Green, Carole; Hasegawa, Tomoko; Leininger, Julia; Monteich, Seth; Pichs-Madruga, Ramon (Journal article; Peer reviewed, 2020)
      Long-term global scenarios have underpinned research and assessment of global environmental change for four decades. Over the past ten years, the climate change research community has developed a scenario framework combining ...
    • Cloudy-sky contributions to the direct aerosol effect 

      Myhre, Gunnar; Samset, Bjørn Hallvard; Mohr, Christian Wilhelm; Alterskjær, Kari; Balkanski, Yves; Bellouin, Nicolas; Chin, Mian; Haywood, James; Hodnebrog, Øivind; Kinne, Stefan; Lin, Guangxing; Lund, Marianne Tronstad; Penner, Joyce E.; Schulz, Michael; Schutgens, Nick; Skeie, Ragnhild Bieltvedt; Stier, Philip; Takemura, Toshihiko; Zhang, Kai (Journal article; Peer reviewed, 2020)
      The radiative forcing of the aerosol–radiation interaction can be decomposed into clear-sky and cloudy-sky portions. Two sets of multi-model simulations within Aerosol Comparisons between Observations and Models (AeroCom), ...
    • Moving small crafts and services enterprises towards green mobility practices: The role of change agents 

      Julsrud, Tom Erik; Denstadli, Jon Martin (Journal article; Peer reviewed, 2020)
      The uptake of electric vans in professional enterprises has been slow, and the interest in electric mobility is low compared to that of private consumers. To understand critical barriers, resistance, motivations and drivers ...
    • Changing climate change: The carbon budget and the modifying-work of the IPCC 

      Lahn, Bård Lappegård (Journal article; Peer reviewed, 2020)
      Over the last 10 years, the concept of a global ‘carbon budget’ of allowable CO2 emissions has become ubiquitous in climate science and policy. Since it was brought to prominence by the Fifth Assessment Report of the IPCC, ...
    • Urbanization in megacities increases the frequency of extreme precipitation events far more than their intensity 

      Marelle-Sebrechts, Louis; Myhre, Gunnar; Steensen, Birthe Marie Rødssæteren; Hodnebrog, Øivind; Alterskjær, Kari; Sillmann, Jana (Journal article; Peer reviewed, 2020)
      More than half of the world's population lives in urban areas (UN Population Division 2018 The World's cities in 2018 (UN: New York)), which are especially vulnerable to climate extremes (Field et al 2012 Managing the Risks ...
    • Dirty air offsets inequality 

      Lund, Marianne Tronstad (Journal article; Peer reviewed, 2020)
      Atmospheric aerosols have probably masked a significant portion of the greenhouse-gas-induced warming so far. Research now shows that this also may have masked some of the world’s increasing economic inequality.
    • Community acceptance of wind energy developments: Experience from wind energy scarce regions in Europe 

      Leiren, Merethe Dotterud; Aakre, Stine; Linnerud, Kristin; Julsrud, Tom Erik; Di Nucci, Maria-Rosaria; Krug, Michael (Journal article; Peer reviewed, 2020)
      Renewable energy plays an important role in the transition to a low emission society, yet in many regions energy projects have resulted in increasing societal polarization. Based on a comprehensive literature review and a ...
    • Climate change effects on hydrometeorological compound events over southern Norway 

      Poschlod, Benjamin; Zscheischler, Jakob; Sillmann, Jana; Wood, Raul R.; Ludwig, Ralf (Journal article; Peer reviewed, 2020)
      Hydrometeorological compound events cause severe economical, societal and environmental damage, but their investigation is difficult as they occur rarely and are multivariate. Here we use 50 high-resolution climate simulations ...
    • Reducing the aerosol forcing uncertainty using observational constraints on warm rain processes 

      Mülmenstädt, Johannes; Nam, Christine; Salzmann, Marc; Kretzschmar, Jan; L'Ecuyer, Tristan S.; Lohmann, Ulrike; Ma, Po-Lun; Myhre, Gunnar; Neubauer, David; Stier, Philip; Suzuki, Kentaroh; Wang, Minghuai; Quaas, Johannes (Journal article; Peer reviewed, 2020)
      Global climate models (GCMs) disagree with other lines of evidence on the rapid adjustments of cloud cover and liquid water path to anthropogenic aerosols. Attempts to use observations to constrain the parameterizations ...
    • A machine learning examination of hydroxyl radical differences among model simulations for CCMI-1 

      Nicely, Julie M.; Duncan, Bryan; Hanisco, Thomas F.; Wolfe, Glenn M.; Salawitch, Ross J.; Deushi, Makoto; Haslerud, Amund Søvde; Jöckel, Patrick; Josse, Béatrice; Kinnison, Douglas E.; Klekociuk, Andrew; Manyin, Michael E.; Marécal, Virginie; Morgenstern, Olaf; Murray, Lee T.; Myhre, Gunnar; Oman, Luke D.; Pitari, Giovanni; Pozzer, Andrea; Quaglia, Ilaria; Revell, Laura E.; Rozanov, Eugene; Stenke, Andrea; Stone, Kane; Strahan, Susan E.; Tilmes, Simone; Tost, Holger; Westervelt, Daniel M.; Zeng, Guang (Journal article; Peer reviewed, 2020)
      The hydroxyl radical (OH) plays critical roles within the troposphere, such as determining the lifetime of methane (CH4), yet is challenging to model due to its fast cycling and dependence on a multitude of sources and ...
    • Distinct responses of Asian summer monsoon to black carbon aerosols and greenhouse gases 

      Xie, Xiaoning; Myhre, Gunnar; Liu, Xiaodong; Li, Xinzhou; Shi, Zhengguo; Wang, Hongli; Kirkevåg, Alf; Lamarque, Jean-Francois; Shindell, Drew; Takemura, Toshihiko; Liu, Yangang (Journal article; Peer reviewed, 2020)
      Black carbon (BC) aerosols emitted from natural and anthropogenic sources induce positive radiative forcing and global warming, which in turn significantly affect the Asian summer monsoon (ASM). However, many aspects of ...