Changing Planet

Report: Climate Change’s Transformation of Arctic Has Cascading Effects

Climate-change-related environmental, ecological, and social changes in the Arctic are accelerating and are more extreme than ever recorded, undermining the sustainability of current ways of life in the region and potentially destabilizing climate and ecosystems around the world, according to a five-year report released last week by the Arctic Council, an intergovernmental organization formed to protect the region.

“Arctic social and biophysical systems are deeply intertwined with our planet’s social and biophysical systems, so rapid, dramatic and unexpected changes in this sensitive region are likely to be felt elsewhere,” the report states. “As we are often reminded, what happens in the Arctic doesn’t stay in the Arctic.”

The report noted that the Greenland Ice Sheet, which was thought to be resistant to climate change, is experiencing higher-than-expected thinning “over time scales of only years” due to warmer temperatures caused by climate change and that if it melts completely, global sea levels would rise an average of 7.4 meters.

The report outlines 19 “regime shifts” under way or on the horizon absent efforts to halt them. They range from sea-ice-free summers to ocean circulation changes and collapse of some Arctic fisheries.

“The warning signals are getting louder,” said Marcus Carson of the Stockholm Environment Institute and one of the co-authors of the report. “[These developments] also make the potential for triggering [tipping points] and feedback loops much larger.”

Trump Transition: EPA Prospects

Just days after stating his “open mind” to confronting climate change, president-elect Donald Trump was meeting with potential prospects to run the U.S. Environmental Protection Agency (EPA) that would align with his campaign promises to roll back agency regulations.

Two rumored EPA leaders who have called for a significant rollback in regulations—Oklahoma Attorney General Scott Pruitt and former Texas environmental regulator Kathleen Hartnett White—were scheduled to meet with Trump this week.

In an interview with McClatchy, White confirmed her consideration for the post, which she says she would take on with a new approach to address a “shifting environmental landscape.” White also shared details of her conversation with Trump.

“He wants the EPA to run more carefully, to use stronger science and be unabashedly conscientious to the effect of more and more rules on existing employment and job creation,” she said. “I have no desire to put words in his mouth. But as he is in other areas, he likes a good deal.”

Climate Change Conference in Marrakech Concludes

The United Nations Framework Convention on Climate Change (COP22), which brought nearly 200 countries together to hammer out the details of last year’s Paris Agreement, concluded last month. What exactly came out of the two-week conference?

  • A timeline for implementing the Paris Agreement, which aims to hold the global average temperature increase to “well below” 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit that increase to 1.5 degrees Celsius. Countries participating in COP22 decided to complete detail setting for the agreement by 2018 and to review progress in 2017.
  • The Marrakech Action Proclamation. The one-page document reaffirms countries’ commitments to the Paris Agreement’s goals following the election of Donald Trump as the next U.S. president. On the campaign trail, Trump stated intentions to end U.S. involvement in the agreement.
  • Forty-eight of the world’s poorest and most vulnerable countries pledged to turn in more ambitious targets to Paris before 2020 and to shift to 100 percent renewable energy use by 2050.
  • An agreement to continue the discussion on climate finance. There’s still uncertaintysurroundingthe pathway to mobilizing $100 billion in climate finance for developing countries by 2020, to establishing rules for reporting finance, and to scaling up adaptation finance.
  • Nations also agreed on a five-year work-plan on “loss and damage” to address issues beyond climate adaptation like slow-onset impacts of climate change, non-economic losses and migration.

The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University’s Nicholas Institute for Environmental Policy Solutions.

Tim Profeta is the founding director of the Nicholas Institute for Environmental Policy Solutions. The Nicholas Institute is part of Duke University and focuses on improving environmental policy making worldwide through objective, fact-based research in the areas of climate change, the economics of limiting carbon pollution, oceans governance and coastal management, emerging environmental markets and freshwater concerns at home and abroad. In his role at the Nicholas Institute, Profeta has continued to use his experience on Capitol Hill to engage in climate change debates. His research has focused, specifically, on market-based approaches to environmental regulations—particularly energy and climate change policy. Other projects engage his expertise in environmental law and air pollution regulation under the Clean Air Act.

About the Blog

Researchers, conservationists, and others share stories, insights and ideas about Our Changing Planet, Wildlife & Wild Spaces, and The Human Journey. More than 50,000 comments have been added to 10,000 posts. Explore the list alongside to dive deeper into some of the most popular categories of the National Geographic Society’s conversation platform Voices.

Opinions are those of the blogger and/or the blogger’s organization, and not necessarily those of the National Geographic Society. Posters of blogs and comments are required to observe National Geographic’s community rules and other terms of service.

Voices director: David Braun (

Social Media