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imaggeo.egu.eu/Alexandra Loginova

Journal Article - Proceedings of the National Academy of Sciences of the United States of America

Permafrost Carbon Feedbacks Threaten Global Climate Goals

    Authors:
  • Susan M. Natali
  • Brendan M. Rogers
  • Rachael Treharne
  • Philip Duffy
  • Rafe Pomerance
  • Erin MacDonald
| May 25, 2021

There is an urgent need to incorporate the latest science on carbon emissions from permafrost thaw and northern wildfires into international consideration of how much more aggressively societal emissions must be reduced to address the global climate crisis.

dead common murres lie washed up on a rocky beach

AP/Mark Thiessen, File

Journal Article - Science Advances

The Polar Regions in a 2°C Warmer World

    Authors:
  • Eric Post
  • Richard B. Alley
  • Torben R. Christiansen
  • Marc Macias-Fauria
  • Bruce C. Forbes
  • Michael N. Gooseff
  • Amy Iler
  • Jeffrey T. Kerby
  • Kristin L. Laidre
  • Michael E. Mann
  • Johan Olofsson
  • Julienne C. Stroeve
  • Ross A. Virginia
  • Muyin Wang
| Dec. 04, 2019

Over the past decade, the Arctic has warmed by 0.75°C, far outpacing the global average, while Antarctic temperatures have remained comparatively stable. As Earth approaches 2°C warming, the Arctic and Antarctic may reach 4°C and 2°C mean annual warming, and 7°C and 3°C winter warming, respectively. Expected consequences of increased Arctic warming include ongoing loss of land and sea ice, threats to wildlife and traditional human livelihoods, increased methane emissions, and extreme weather at lower latitudes.

Journal Article - Journal of International Security Affairs

Preventing the Unthinkable

Spring/Summer 2011

During the Cold War, the threat of a nuclear attack came mainly from the U.S.-Russian nuclear arsenals, writes Kevin Ryan. Today, however, the United States and Russia have been forced to adapt to a new nuclear threat—that of dedicated terrorists with money and technological access who seek to obtain and use a nuclear device.

Four nuclear policy veterans — Joseph S. Nye Jr. (from left), Ashton B. Carter, Albert Carnesale, and Graham Allison — gathered at the Harvard Kennedy School for a seminar on the current challenges in avoiding nuclear war.

Photo by Sharon Wilke

Magazine Article - Harvard University Office of News and Public Affairs Harvard Gazette

Nuclear Threats, Then and Now

| May 19, 2011

In 1985, researchers at the Harvard Kennedy School published a book called “Hawks, Doves, and Owls,” and gave it an ambitious subtitle: “An Agenda for Avoiding Nuclear War.” Those scholars gathered again at the School on Monday (May 16) for a seminar on the current challenges in avoiding nuclear war — and to marvel at just how drastically the nuclear threat has morphed in the two decades since the Cold War ended and the Soviet Union collapsed.

UN climate chief Christiana Figueres places a building block in a miniature Mayan pyramid at the site of climate negotiations in Cancun, Mexico, Nov. 28, 2010. The "Pyramid of Hope" symbolizes the many building blocks needed for a new climate agreement.

AP Photo

Magazine Article - The National Journal

Will We Know Success When We See It?

| December 6, 2010

"It might be relatively easy, but actually quite unfortunate, for countries to achieve what some people might define as 'success' in Cancun:  a signed international agreement, followed by glowing press releases.  I say it would unfortunate, because such an agreement could only be the Kyoto Protocol on steroids: more stringent targets for the original list of industrialized countries (Annex I) and no meaningful commitments by the key rapidly-growing emerging economies, such as China, India, Brazil, Korea, Mexico, and South Africa."

The flag of the International Atomic Energy Agency (IAEA) flies in front of the Vienna headquarters at the Vienna International Center on March 27, 2009.

AP Photo

Journal Article - Daedalus

Alternative Nuclear Futures

| Winter 2010

"Our crystal ball is not clear enough to predict with confidence whether the global nuclear future will be characterized by peace and prosperity or by conflict and destruction. But we do believe that the choices made in the coming few years will be crucial in determining whether the world can have more nuclear power without more nuclear weapons dangers in the future."

A nuclear security officer armed with an AR-15 assault rifle and 9mm hand gun patrols the coastal area of the Diablo Canyon nuclear power plant, May 5, 2004, in Avila Beach, Calif.

AP Photo

Journal Article - Daedalus

Reducing the Greatest Risks of Nuclear Theft & Terrorism

| Fall 2009

"Keeping nuclear weapons and the difficult-to-manufacture materials needed to make them out of terrorist hands is critical to U.S. and world security — and to the future of nuclear energy as well. In the aftermath of a terrorist nuclear attack, there would be no chance of convincing governments, utilities, and publics to build nuclear reactors on the scale required for nuclear energy to make any significant contribution to coping with climate change."