Global and regional drivers of accelerating CO2 emissions
Michael R. Raupach,Gregg Marland,Philippe Ciais,Corinne Le Quéré,J. G. Canadell,Gernot Klepper,Christopher B. Field +6 more
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TLDR
Global emissions growth since 2000 was driven by a cessation or reversal of earlier declining trends in the energy intensity of gross domestic product (GDP) and the carbon intensity of energy (emissions/energy), coupled with continuing increases in population and per-capita GDP.Abstract:
CO2 emissions from fossil-fuel burning and industrial processes have been accelerating at a global scale, with their growth rate increasing from 1.1% y(-1) for 1990-1999 to >3% y(-1) for 2000-2004. The emissions growth rate since 2000 was greater than for the most fossil-fuel intensive of the Intergovernmental Panel on Climate Change emissions scenarios developed in the late 1990s. Global emissions growth since 2000 was driven by a cessation or reversal of earlier declining trends in the energy intensity of gross domestic product (GDP) (energy/GDP) and the carbon intensity of energy (emissions/energy), coupled with continuing increases in population and per-capita GDP. Nearly constant or slightly increasing trends in the carbon intensity of energy have been recently observed in both developed and developing regions. No region is decarbonizing its energy supply. The growth rate in emissions is strongest in rapidly developing economies, particularly China. Together, the developing and least-developed economies (forming 80% of the world's population) accounted for 73% of global emissions growth in 2004 but only 41% of global emissions and only 23% of global cumulative emissions since the mid-18th century. The results have implications for global equity.read more
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Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change
TL;DR: Drafting Authors: Neil Adger, Pramod Aggarwal, Shardul Agrawala, Joseph Alcamo, Abdelkader Allali, Oleg Anisimov, Nigel Arnell, Michel Boko, Osvaldo Canziani, Timothy Carter, Gino Casassa, Ulisses Confalonieri, Rex Victor Cruz, Edmundo de Alba Alcaraz, William Easterling, Christopher Field, Andreas Fischlin, Blair Fitzharris.
Journal ArticleDOI
Irreversible climate change due to carbon dioxide emissions
TL;DR: The climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop, showing that thermal expansion of the warming ocean provides a conservative lower limit to irreversible global average sea level rise.
Journal ArticleDOI
The Anthropocene: are humans now overwhelming the great forces of Nature?
TL;DR: This work uses atmospheric carbon dioxide concentration as a single, simple indicator to track the progression of the Anthropocene, the current epoch in which humans and the authors' societies have become a global geophysical force.
Journal ArticleDOI
Contributions to accelerating atmospheric CO2 growth from economic activity, carbon intensity, and efficiency of natural sinks
Josep G. Canadell,Corinne Le Quéré,Michael R. Raupach,Christopher B. Field,Erik T. Buitenhuis,Philippe Ciais,Thomas J. Conway,Nathan P. Gillett,Richard A. Houghton,Gregg Marland +9 more
TL;DR: The growth rate of atmospheric carbon dioxide (CO2), the largest human contributor to human-induced climate change, is increasing rapidly and three processes contribute to this rapid increase: emissions, global economic activity, carbon intensity of the global economy, and the increase in airborne fraction of CO2 emissions.
Journal ArticleDOI
Trends in the sources and sinks of carbon dioxide
Corinne Le Quéré,Corinne Le Quéré,Michael R. Raupach,Josep G. Canadell,Gregg Marland,Laurent Bopp,Philippe Ciais,Thomas J. Conway,Scott C. Doney,Richard A. Feely,Pru N Foster,Pierre Friedlingstein,Kevin R. Gurney,Richard A. Houghton,Joanna Isobel House,Chris Huntingford,Peter Levy,Mark R. Lomas,Joseph D. Majkut,Nicolas Metzl,Jean Pierre Henry Balbaud Ometto,Glen P. Peters,I. Colin Prentice,James T. Randerson,Steven W. Running,Jorge L. Sarmiento,Ute Schuster,Stephen Sitch,Taro Takahashi,Nicolas Viovy,Guido R. van der Werf,F. Ian Woodward +31 more
TL;DR: In the past 50 years, the fraction of CO2 emissions that remains in the atmosphere each year has likely increased, from about 40% to 45%, and models suggest that this trend was caused by a decrease in the uptake of CO 2 by the carbon sinks in response to climate change and variability as mentioned in this paper.
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Special report on emissions scenarios
Nebojsa Nakicenovic,Joseph Alcamo,Gerald F. Davis,Bert de Vries,Joergen Fenhann,Stuart Gaffin,Kermeth Gregory,Amulf Griibler,Tae Y. Jung,Tom Kram,Emilio Lèbre La Rovere,Laurie Michaelis,S. Mori,Tsuneyuki Morita,William Pepper,Hugh M. Pitcher,Lynn Price,Keywan Riahi,Alexander Roehrl,Hans-Holger Rogner,Alexei Sankovski,Michael E. Schlesinger,Priyadarshi R. Shukla,Steven J. Smith,Robert Swart,Sascha van Rooijen,Nadejda M. Victor,Zhou Dadi +27 more
TL;DR: Nakicenovic, N., Alcamo, J., Davis, G., Vries, B. van; Victor, N.; Zhou, D. de; Fenhann, J.; Gaffin, S.; Gregory, K.; Grubler, A.; Jung, T. La; Michaelis, L.; Mori, S; Morita, T.; Pepper, W.; Pitcher, H.; Price, L., Riahi, K; Rogner, H-H.; Sankovski, A; Schlesinger, M.; Shuk
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