New study reveals Arctic sea ice complicates shipping routes

New study reveals Arctic sea ice complicates shipping routes

Melting sea ice in the Canadian Arctic is paradoxically making shipping routes more hazardous due to the movement of centuries-old thick ice, according to recent research.

Bridget Stringer-Holden reports for CBC News.


In short:

  • Melting thinner ice is releasing thick, old ice, creating choke points in the Northwest Passage.
  • The study, reflecting actual ship traffic from 2007-2021, shows increased risk on key routes, despite longer shipping seasons in some areas.
  • Local coastal communities face increased food and supply costs due to shortened shipping seasons and reliance on costly airlifts.

Key quote:

"It's true that the Arctic sea ice in general is showing significant retreat and melting, and will continue to do so, but our new study shows that it's not a simple story."

— Alison Cook, Scottish Association for Marine Science

Why this matters:

Thick ice obstructing Arctic shipping routes poses economic and logistical challenges for coastal communities, increasing their dependence on expensive airlifts. Additionally, this complicates future plans for using the Northwest Passage as a reliable trade route, affecting global shipping logistics.

Graphic image of two round blue water droplets with blue H in each.

Trump administration may cancel hydrogen hub projects in Democratic-led states

A plan circulating in the Department of Energy suggests slashing federal funds for clean hydrogen hubs in Democratic-leaning states while preserving funding for similar projects in Republican-led areas.

Zack Colman, Ben Lefebvre, Kelsey Tamborrino and James Bikales report for POLITICO.

Keep reading...Show less
Senator Whitehouse & climate change

Senator Whitehouse puts climate change on budget committee’s agenda

For more than a decade, Senator Sheldon Whitehouse gave daily warnings about the mounting threat of climate change. Now he has a powerful new perch.
Two people embracing and standing at a car looking at a destroyed house.

Climate-fueled disasters surged in 2024 as FEMA faces political threats

The U.S. saw a dramatic rise in climate-related disasters last year, even as federal leaders weigh dismantling the agency tasked with disaster response.

Tara Suter reports for The Hill.

Keep reading...Show less
Sunset photo of train tracks with a bridge in the background.

U.S. infrastructure sees small gains from Biden-era funding but major gaps remain

The U.S. earned a “C” for its infrastructure in a new national report, with recent federal investments helping slightly but falling far short of what’s needed to fix aging systems and prepare for climate risks.

Tammy Webber and Michael Phillis report for The Associated Press.

Keep reading...Show less
Person with a blonde buzz cut and earrings standing with sign that says Fossil Fuel: Boy Bye

Trump’s energy secretary pushes fossil fuels while dismissing renewables in public speeches

In his Senate confirmation, Chris Wright pledged support for clean energy, but since taking office, he’s promoted fossil fuels and attacked renewables in conservative forums.

Abrahm Lustgarten reports for ProPublica.

Keep reading...Show less
Smokestacks with pollution emissions

EPA chief moves to dismantle climate protections

Under Lee Zeldin, the U.S. Environmental Protection Agency is working to reverse decades of environmental protections, with a focus on erasing climate regulations.

Elizabeth Kolbert reports for The New Yorker.

Keep reading...Show less
NOAA employees in a watchtower with meteorology equipment.
Credit: NOAA/Unsplash

Opinion: Cuts to NOAA threaten U.S. climate research and weather forecasting

The National Oceanic and Atmospheric Administration faces mass layoffs and potential program shutdowns as the Trump administration moves to shrink its role in climate and weather science.

Adam Sobel writes for Yale Environment 360.

Keep reading...Show less
Petrochemical plant with sunset in the background.

Trump administration halts $1.7 billion in EPA grants for pollution-hit communities

The U.S. Environmental Protection Agency has canceled over 400 environmental justice grants aimed at low-income and minority neighborhoods, drawing sharp criticism from Senate Democrats.

Michael Phillis, Alexa St. John and Matthew Daly report for The Associated Press.

Keep reading...Show less
From our Newsroom
silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

People  sitting in an outdoors table working on a big sign.

Op-ed: Why funding for the environmental justice movement must be anti-racist

We must prioritize minority-serving institutions, BIPOC-led organizations and researchers to lead environmental justice efforts.

joe biden

Biden finalizes long-awaited hydrogen tax credits ahead of Trump presidency

Responses to the new rules have been mixed, and environmental advocates worry that Trump could undermine them.

Op-ed: Toxic prisons teach us that environmental justice needs abolition

Op-ed: Toxic prisons teach us that environmental justice needs abolition

Prisons, jails and detention centers are placed in locations where environmental hazards such as toxic landfills, floods and extreme heat are the norm.

Agents of Change in Environmental Justice logo

LISTEN: Reflections on the first five years of the Agents of Change program

The leadership team talks about what they’ve learned — and what lies ahead.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.