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PUBLIC RELEASE DATE:
3-Dec-2013

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Contact: Jennifer Horsley
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Public Library of Science

Assessing dangerous climate change and call for climate change response papers

PLOS ONE publishes "Assessing Dangerous Climate Change: Required Reductions of Carbon Emissions to Protect Young People, Future Generations and Nature" from James Hansen and colleagues, and announces call for papers on responses to climate change:

A new paper from James Hansen and colleagues entitled "Assessing Dangerous Climate Change: Required Reduction of Carbon Emissions to Protect Young People, Future Generations and Nature" will publish in the open access journal PLOS ONE on 3rd December. The article challenges researchers, policy makers and world leaders to respond to climate change with active attempts to restore energy balance and regain stability of Earth's ecosystem.

"Although there is merit in simply chronicling what is happening, there is still opportunity for humanity to exercise free will. Thus our objective is to define what the science indicates is needed," states Hansen, adjunct professor in the Department of Earth and Environmental Sciences at Columbia University and former head of the NASA Goddard Institute for Space Studies in New York City.

The publication will be announced December 3rd at a press conference at Columbia University by economist Jeffrey Sachs, Director of the university's Earth Institute and one of the co-authors of the paper.

By calculating atmospheric CO2 as a function of fossil fuel emissions and examining the potential for drawing down atmospheric CO2 via reforestation and increase of soil carbon, Hansen et al review fossil fuel emission reduction scenarios, concluding that an appropriate target is to keep global temperature within or close to the temperature range in the Holocene, the interglacial period in which civilization developed.

Following on from the PLOS Collection "Ecological Impacts of Climate Change" the publication of this paper is accompanied by a call for papers for responses to climate change.

"Our hope is to generate a wide range of submissions on climate research and in particular papers that address solutions to the challenges posed by a changing climate, such as alternative energy development, environmental preservation, the problems of acidification, adaptation strategies and restoration of failing ecosystems. As a multidisciplinary and open access journal, PLOS ONE is well equipped to handle the variety of submissions we hope to receive and make that research freely available to the world for application and further development" says Damian Pattinson, Editorial Director of PLOS ONE.

Papers submitted to the call that successfully undergo peer review will be published in PLOS ONE. A PLOS Collection, "Responding to Climate Change," will be launched in early 2014 to highlight the research.

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All works published in PLOS ONE are open access, which means that everything is immediately and freely available. Use this URL in your coverage to provide readers access to the paper upon publication: http://dx.plos.org/10.1371/journal.pone.0081648

Citation: Hansen J, Kharecha P, Sato M, Masson-Delmotte V, Ackerman F, et al. (2013) Assessing ''Dangerous Climate Change'': Required Reduction of Carbon Emissions to Protect Young People, Future Generations and Nature. PLOS ONE 8(12): e81648. doi:10.1371/journal.pone.0081648

Competing Interests: The authors have declared that no competing interests exist.

Funding: Funding came from: NASA Climate Research Funding, Gifts to Columbia University from H.F. (''Gerry'') Lenfest, private philanthropist (no web site, but see http://en.wikipedia.org/wiki/H._F._Lenfest), Jim Miller, Lee Wasserman (Rockefeller Family Fund) (http://www.rffund.org/), Flora Family Foundation (http://www.florafamily.org/), Jeremy Grantham, ClimateWorks and the Energy Foundation provided support for Hansen's Climate Science, Awareness and Solutions program at Columbia University to complete this research and publication. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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About PLOS ONE: PLOS ONE is the first journal of primary research from all areas of science to employ a combination of peer review and post-publication rating and commenting, to maximize the impact of every report it publishes. PLOS ONE is published by the Public Library of Science (PLOS), the open-access publisher whose goal is to make the world's scientific and medical literature a public resource.

All works published in PLOS ONE are Open Access. Everything is immediately availableŚto read, download, redistribute, include in databases and otherwise useŚwithout cost to anyone, anywhere, subject only to the condition that the original authors and source are properly attributed. For more information about PLOS ONE relevant to journalists, bloggers and press officers, including details of our press release process and our embargo policy, see the everyONE blog at http://everyone.plos.org/media.



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