Name: Why Scientists Think They Can Save Melting Sea Ice--by Freezing It Back Up
Uploaded: 2024-06-07T04:02:00Z
Duration: 8 min 18 s
Description: Deep in the Arctic scientists are experimenting with refreezing techniques in a bid to solve one of mankind’s biggest challenges: stopping the melt of sea ice and saving the planet.

https://www.barrons.com/client

Topics

Memberships

Tools

Customer Service

Network

Newsstand

For Business

For Education

For Advertisers

Account

About Barron's

bolded

unBolded

Under CEO Cristiano Amon, semiconductor company Qualcomm is bringing its technology to multiple industries. This conversation was recorded on May 28, 2025.

https://m.wsj.net/video/20250717/f95245f1-1b2d-453e-a058-30d6a835822a/1/hls/manifest-hd-wifi.m3u8

Qualcomm CEO Shares the Company's Disruption Strategy

That's according to Okta CEO Todd McKinnon, who also spoke about how the company's name is tied to pilots and why flexibility is a core aspect of Okta's business.

https://m.wsj.net/video/20250710/d3fadd54-0fc6-4961-a2c0-0d858131e3c7/1/hls/manifest-hd-wifi.m3u8

Why Okta Wants 'Authentication to Disappear'

Dr. Robert Grossman, CEO of NYU Langone Health, which has consistently ranked as one of the best hospitals in the nation. talked about the Trump administration's plans to significantly cut the budget of the National Institutes of Health (NIH).

https://m.wsj.net/video/20250715/02e28b09-0b7e-4a48-8227-6dbbb42d9598/1/hls/manifest-hd-wifi.m3u8

NYU Langone CEO on NIH Cuts: 'That Takes a Scalpel, Not a Sledgehammer'

Though quality of care is excellent in the U.S., access to care needs to be improved, said Dr. Robert Grossman, CEO of NYU Langone Health, which has consistently ranked as one of the best hospitals in the nation.

https://m.wsj.net/video/20250715/fc3563ea-508b-4d6d-b32a-a77f939c6e5b/1/hls/manifest-hd-wifi.m3u8

NYU Langone CEO Says This Can Help the U.S. Government Fix Healthcare

Dr. Robert Grossman, CEO of NYU Langone Health, spoke to At Barron's about how the health system has transformed and changes he made along the way.

https://m.wsj.net/video/20250703/c25a5233-a5a6-48c9-bf10-ea3948ab7d7b/1/hls/manifest-hd-wifi.m3u8

How This Massive NYC Health System Changed Its Business Model

"The economic implications for the U.S. are profound," said Greg Case, CEO of Aon.

https://m.wsj.net/video/20250709/57231b7d-6d25-4c2e-ae5c-f0b6a6299196/1/hls/manifest-hd-wifi.m3u8

Why Aon's CEO Is Betting on GLP-1 and Other Weight-Loss Meds

"It creates opportunity, which is terrific, but it also creates volatility," said Greg Case, CEO of Aon, talking about the connectivity and complexity underpinning today's business environment.

https://m.wsj.net/video/20250709/c5c85274-4515-484f-8cf4-2a6b3056b927/1/hls/manifest-hd-wifi.m3u8

Why Aon's CEO Thinks Volatility Isn't Going Anywhere

Greg Case, CEO of Aon, explains 4 causes of global volatility the risk manager helps clients navigate.

https://m.wsj.net/video/20250626/65d52c3a-2940-4439-acfa-78e7f53dde15/1/hls/manifest-hd-wifi.m3u8

4 Megatrends That Cause Volatility in the World: Aon CEO

Scott Bok, the former board chair of the University of Pennsylvania, breaks down the financial risks and implications that come with removing tax-exempt status from colleges and universities.

https://m.wsj.net/video/20250709/c8469d5c-8f50-48fd-acb8-97f3b510ea21/1/hls/manifest-hd-wifi.m3u8

Taking Away Tax-Exempt Status: A “Nuclear Weapon Against Universities”

At Barron's

Saira Malik, chief investment officer of Nuveen, makes the case for more gains in 2023.

https://m.wsj.net/video/20230925/4d8aa5ee-77aa-4400-884b-1fafeff893ec/1/hls/manifest-hd-wifi.m3u8

S&P 4700?

David Bailin, chief investment officer of Citi Global Wealth, offers his take on the latest IPO activity and what it says about the strength of capital markets.

https://m.wsj.net/video/20230925/5f4d4a28-d83a-40e3-ad94-28bc25b1c3bc/1/hls/manifest-hd-wifi.m3u8

IPOs: Making a Comeback

Chris Harvey, head of equity strategy at Wells Fargo Securities, explains what would make him more bullish on stocks and when he sees a Fed rate cut coming.

https://m.wsj.net/video/20230918/1f534ddf-5da9-4d1d-9926-fda63e90468e/1/hls/manifest-hd-wifi.m3u8

Cuts on the Horizon?

Tom Kennedy, chief investment strategist for J.P. Morgan Global Wealth Management, explains why he thinks concerns around a slowdown in China are overblown.

https://m.wsj.net/video/20230918/09304272-5f0c-49df-892a-3a3d4622c9c3/1/hls/manifest-hd-wifi.m3u8

Evaluating China Risk

Liz Young, head of investment strategy at SoFi, discusses how market moving the August inflation data could be.

https://m.wsj.net/video/20230911/50b8c6b4-8fd3-4d6f-adff-dd0a024a57d7/1/hls/manifest-hd-wifi.m3u8

Inflation in the Spotlight

Lindsey Piegza, chief economist at Stifel, offers her take on the biggest risks to the economy right now.

https://m.wsj.net/video/20230911/cac885e4-b322-40f8-876c-ebd443fe9d29/1/hls/manifest-hd-wifi.m3u8

Assessing Economic Headwinds 

Dan Ives, managing director and senior equity analyst at Wedbush Securities, explains why he thinks Apple will continue to be a market leader.

https://m.wsj.net/video/20230905/1a48f030-5a5a-401c-a571-ec9115a0155e/1/hls/manifest-hd-wifi.m3u8

Prove-me Moment

Ross Mayfield, investment strategy analyst at Baird, highlights bullish catalysts that could drive the market higher between now and year-end.

https://m.wsj.net/video/20230905/729974df-4594-4fc6-a385-5457b1d87e32/1/hls/manifest-hd-wifi.m3u8

Gearing up for a Rally

Matthew Luzzetti, chief U.S. economist at Deutsche Bank, discusses what’s next for the Federal Reserve and the economy.

https://m.wsj.net/video/20230501/7264fcc9-eea9-4d99-b839-4cd4c20500c9/1/hls/manifest-hd-wifi.m3u8

Recession Ahead 

MarketBrief | Clips

MarketBrief Clips

David Bailin of Citi Global Wealth and Saira Malik of Nuveen debate the probability of a recession and discuss where they’re finding opportunities in equities and fixed income.

https://m.wsj.net/video/20230925/a61dd831-40b8-4727-934f-077d2b880711/1/hls/manifest-hd-wifi.m3u8

Investing in a Slowing Economy 

Take stock of your investments in less than 10 minutes with new show from Barron’s and MarketWatch.

Chris Harvey of Wells Fargo Securities explains why he believes the Federal Reserve is done hiking interest rates while J.P. Morgan Global Wealth Management’s Tom Kennedy makes the case for multi-asset investing.

https://m.wsj.net/video/20230918/84e9a4a4-4e50-4b7b-934c-9a532f9803fc/1/hls/manifest-hd-wifi.m3u8

Rate Hikes in the Rearview?

Lindsey Piegza of Stifel discusses the upside risks for inflation while SoFi’s Liz Young explains why she’s cautious on the market through year-end.

https://m.wsj.net/video/20230911/395ecb74-e349-45b0-a6b8-f91b8874aaf8/1/hls/manifest-hd-wifi.m3u8

Pricing Pressure & Frothy Valuations

Baird’s Ross Mayfield makes the case for a better than expected September for stocks while Dan Ives of Wedbush Securities explains why big tech can rally another 15%.

https://m.wsj.net/video/20230905/156bf778-e13d-41ef-b750-55e2ef1c0162/1/hls/manifest-hd-wifi.m3u8

September to Remember? 

Kristen Bitterly of Citi Global Wealth Management explains why the strong start to the year is nothing more than a bear market rally while Eric Winograd of AllianceBernstein offers his outlook for the Fed, inflation, and the labor market.

https://m.wsj.net/video/20230220/ae07e591-f017-4e82-babb-c80144e7d42f/1/hls/manifest-hd-wifi.m3u8

Time to be Skeptical?

Anastasia Amoroso of iCapital explains why she thinks the stock market rally is nearing a ceiling while U.S. Bank Wealth Management’s Lisa Erickson discusses where she’s finding investment opportunities in an uncertain environment.

https://m.wsj.net/video/20230213/61be15a3-f5ac-4a25-b944-edd15e605e30/1/hls/manifest-hd-wifi.m3u8

Hitting a Wall

Jack Manley of J.P. Morgan Asset Management explains why now is the time to leg back into risk assets while BlackRock’s Rick Rieder offers his top fixed income opportunities.

https://m.wsj.net/video/20230206/0be0daa9-d29a-4350-b277-a9ee6ed9a2ea/1/hls/manifest-hd-wifi.m3u8

Two Ways to Play

Amid impressive January gains, Cameron Dawson of New Edge Wealth discusses how she’s positioning her portfolio and Mark Zandi of Moody's Analytics explains why he thinks the economy can still avoid a recession.

https://m.wsj.net/video/20230130/a8c37d62-592b-4830-9466-65c3824205fe/1/hls/manifest-hd-wifi.m3u8

Gauging Upside Potential

Mike Schumacher of Wells Fargo Securities explains why he’s nervous about stagflation while Sylvia Jablonski of Defiance Investments offers her top portfolio picks.

https://m.wsj.net/video/20230123/1e752a76-b7d4-4802-821a-837d6176f979/1/hls/manifest-hd-wifi.m3u8

Wall Street’s Biggest Risk

MarketBrief | Full Episodes

MarketBrief Full Episodes

After 10 straight hikes, the central bank switched gears and opted to keep rates steady. But that doesn't mean the Fed's inflation fight is over.

https://m.wsj.net/video/20230616/9dce6e5c-4c62-4aa6-b432-d3407ac41aea/1/hls/manifest-hd-wifi.m3u8

The Fed's Rate Pause, Explained

A publicly traded company can increase it's number of shares available by splitting its stock. Here's why companies may do it and how it affects investors.

https://m.wsj.net/video/20221115/f37dedad-4403-4f6d-bd22-067d0fb148df/1/hls/manifest-hd-wifi.m3u8

Stock Splits Are Big This Year. Here's What They Mean for Investors.

Here's why a publicly traded company may decide to go private and what it means for its shareholders.

https://m.wsj.net/video/20221025/9fb3fa20-e2ac-485b-aa4d-8fcf3ebd3151/1/hls/manifest-hd-wifi.m3u8

What Happens When a Stock Goes Private?

What Happens When a Public Company Goes Private?

When saving for retirement, there are many different accounts and tax strategies to consider. Here's how to tell if a Roth IRA conversion could be right for you.

https://m.wsj.net/video/20221021/624f992c-db58-4144-93cc-b888c6948059/1/hls/manifest-hd-wifi.m3u8

What to Know About Roth IRA Conversions

As recession fears loom, here are three ways investors can prepare and protect their portfolios.

https://m.wsj.net/video/20221020/5d94fa79-7b6d-4c51-8ac7-8c523c99d487/1/hls/manifest-hd-wifi.m3u8

Preparing Your Portfolio for a Recession

Retiring abroad could lower your cost of living, so you can make your savings go further in your golden years. But a permanent move to a new country could be more complicated than you think. Here's what you should know.

https://m.wsj.net/video/20220823/7a028383-44a0-4957-a070-0018f046ec97/1/hls/manifest-hd-wifi.m3u8

Thinking Of Retiring Abroad? Here's What to Consider.

Billionaire-backed space companies have made space tourism a reality. How to participate in a potential private-sector space boom.

https://m.wsj.net/video/20220818/99bac587-9be5-48e6-9376-48f3bb8d55cf/1/hls/manifest-hd-wifi.m3u8

How To Invest In Space Tourism

When you hear the words 'electric vehicle', you might immediately think 'Tesla'. But as more automakers enter the EV competition, Tesla might have trouble holding its lead. Here's what investors need to know.

https://m.wsj.net/video/20220722/111776c7-d9d2-4cd2-8194-4c58b0cb7e57/1/hls/manifest-hd-wifi.m3u8

Is Tesla Miles Ahead of Others in the Electric Vehicle Race?

Chinese tech company DiDi Global, which runs a ride-sharing app, has announced it plans to delist from the New York Stock Exchange. Investors are watching and waiting to see what other Chinese giants with U.S. listings, like Alibaba and JD.com, will do. Here's what delisting entails.

https://m.wsj.net/video/20220722/eacf026e-7303-4eb7-80ab-3e2344e2b120/1/hls/manifest-hd-wifi.m3u8

What Happens When a Stock Delists?

Barron's Explains

CEO Cristiano Amon has a plan to shrink Qualcomm’s reliance on phones and grow its role in AI, cars, and beyond. Investors are skeptical—should they be?

https://m.wsj.net/video/20241127/99579ccd-a5c1-4acc-ac31-32469f7d8b1c/1/hls/manifest-hd-wifi.m3u8

What's Next for Qualcomm?

On the Barron's Streetwise Podcast, Barron’s senior writer Al Root sits down with Jack Hough to discuss Toyota’s recent success with hybrids, the coolest cars at the New York Auto Show, and what’s ahead for Tesla stock.

https://m.wsj.net/video/20240329/f163bbd7-0cb6-4c6f-b7f9-a85ae5cd2553/1/hls/manifest-hd-wifi.m3u8

Is Electric Vehicle Demand Cooling Off? 

On the Barron’s Streetwise podcast, Rystad Energy’s Alexandre Ramos Peon discusses how U.S. oil producers have boosted profitability and production despite fewer wells.

https://m.wsj.net/video/20240326/0a4b30c7-379c-460f-abc3-838a7f1eb1a9/1/hls/manifest-hd-wifi.m3u8

The Outlook for Oil

On the Barron’s Streetwise Podcast, Jack Hough pushes back against one of Bitcoin’s most popular valuation models.

https://m.wsj.net/video/20240318/b38cc34a-5064-4a6a-a47c-4c855de11973/1/hls/manifest-hd-wifi.m3u8

Bitcoin as 'Digital Gold' 

On the Barron’s Streetwise podcast, Raphael Zagury of Swan Bitcoin shares his bitcoin price model with Associate Editor Jack Hough.

https://m.wsj.net/video/20240312/c0acb0bf-e4e3-46ca-8fd5-13af6fa401e5/1/hls/manifest-hd-wifi.m3u8

The $600,000 Case for Bitcoin

Kathy Jones, Chief Fixed Income Strategist at Schwab, says it might not matter. Plus, the outlook for yields and the national debt.

https://m.wsj.net/video/20240305/0505813c-e38b-47cb-ade2-e7c3aff68dbd/1/hls/manifest-hd-wifi.m3u8

Bond Funds or Individual Bonds?

Brian Niccol on developing new customer favorites, taking menu tips from TikTok, and the outlook for growing the business.

https://m.wsj.net/video/20230725/dec91556-4dbe-49e6-85d9-ed0e8233ac02/1/hls/manifest-hd-wifi.m3u8

Chipotle's CEO on How He Plans to Double the Business. Again.

Jim Farley on competing with Tesla, and why Ford is favoring Level 3 autonomy over full self-driving capability.

https://m.wsj.net/video/20230519/9aa4288a-39a1-4fb8-8b9d-3be0c58adc18/1/hls/manifest-hd-wifi.m3u8

Ford CEO On the Outlook for EVs and Robo Cars

J.P. Morgan Asset Management's David Kelly says inflation is like a rollercoaster: It will come down again.

https://m.wsj.net/video/20230505/5d8d3d70-598d-4ee4-a76e-21381c911e40/1/hls/manifest-hd-wifi.m3u8

Inflation, Attractive Bonds, and Value Abroad

Barron's Streetwise

Stocks are expensive, risks abound, and AI is about to change the world. Other than that, building a calamity-proof retirement portfolio should be a cinch. Tune in as two veteran money managers size up the markets and share their investment ideas.

https://m.wsj.net/video/20250211/17a5e7d6-7c36-44b0-a35e-bf5ac3a24194/1/hls/manifest-hd-wifi.m3u8

Saving for a Sunny Day

Research shows that people greatly underestimate the healthcare costs they’ll face in retirement. Learn from experts how to estimate those costs, prepare for potential long-term care needs, and manage healthcare expenses in retirement.

https://m.wsj.net/video/20250211/e7c022d9-badf-4e95-8e7c-0b6fce9f7823/1/hls/manifest-hd-wifi.m3u8

Are You Fiscally Fit?

Surging power demand, new energy sources, and growing competition have spurred the utility industry to become more innovative than ever before. Our panelists will unpack the changes afoot and explore what lies ahead for companies, customers, and investors.

https://m.wsj.net/video/20240917/001ea098-1fcc-4da5-9f0e-a3b149bbb2fb/1/hls/manifest-hd-wifi.m3u8

Not Your Father's Utility

Modernizing America's grid will take creativity and money -- lots of money. Learn how players across the power sector can achieve their electrification goals and serve new customers without breaking the bank for consumers.

https://m.wsj.net/video/20240917/bd6bd43a-bb07-4b7f-9d1c-6ae04220bea9/1/hls/manifest-hd-wifi.m3u8

Ready for a Revamp?

The launch this year of Bitcoin ETFs has made it easier for investors to buy and trade the cryptocurrency. But is that a wise move, and if so, how much crypto should you own?

https://m.wsj.net/video/20240529/cbb77f15-ef70-445d-85ae-5f02c24ea1ef/1/hls/manifest-hd-wifi.m3u8

Investing in Cryptocurrencies

Bitcoin and other digital currencies reside on software networks that aim to revolutionize everything from finance to art. Barron's talks to industry experts about the outlook for blockchain technology and its potential uses.

https://m.wsj.net/video/20240529/8f60a5ea-6de4-4c3c-b7c2-12b11aaa99f3/1/hls/manifest-hd-wifi.m3u8

Is Crypto Really a Game-Changer?

Persistent inflation means retirement savings don't go as far as they once did. We discuss the best inflation hedges, and how retirees can benefit from higher-for-longer interest rates.

https://m.wsj.net/video/20240429/69577ad6-cbaf-4d34-96f1-c42136e26aa2/1/hls/manifest-hd-wifi.m3u8

Protecting Your Nest Egg from Rising Prices

The impact of inflation is felt unevenly across the economy and markets. Learn which industries, and companies do best in a “sticky” inflation era, and how fixed income, alternative assets, and gold can help investors hedge against further price growth.

https://m.wsj.net/video/20240429/bfee3cb8-715f-4323-929f-43a73fd58877/1/hls/manifest-hd-wifi.m3u8

Don’t Trim Your Inflation Hedges

Science, tech, and better healthcare delivery are helping people live longer and improving quality of life. Two healthcare investment experts tell us about some of the most promising developments in medicine, and the companies behind them.

https://m.wsj.net/video/20240305/33bed2b1-bdef-401f-bb72-18f7a43f2548/1/hls/manifest-hd-wifi.m3u8

Longevity: An Investor's Playbook

Barron's Roundtable

Barron's Advisor The Way Forward

Investing in Tech

Barron's Investing in Tech Clips

A Better Economy & Wealth Gap Events

Wealth Gap

Level Up

Barron's Events

Back to Business

Great Investors

MarketWatch

Video Center - Barron's home

Deep in the Arctic scientists are experimenting with refreezing techniques in a bid to solve one of mankind’s biggest challenges: stopping the melt of sea ice and saving the planet. Photo: Max Thurlow for WSJ

https://m.wsj.net/video/20240606/f15e8d65-7c79-4f12-a122-3d75f6bd8386/4/hls/manifest-hd-wifi.m3u8

Deep in the Arctic scientists are experimenting with refreezing techniques in a bid to solve one of mankind’s biggest challenges: stopping the melt of sea ice and saving the planet.

Why Scientists Think They Can Save Melting Sea Ice--by Freezing It Back Up

Narrator: These researchers are deep inside the Arctic Circle.

I have to put the gloves on again.

Narrator: Scrambling to solve one of the biggest challenges mankind has ever faced, the decline of sea ice. From underwater drones to tiny glass beads designed to reflect sunlight away from the ice the race is on to slow the melt and in turn, global warming. In a desperate bid, researchers are increasingly turning to geoengineering innovations. "The Wall Street Journal" exclusively followed one team with a big plan to future-proof the region.

Of course, it's challenging to work in, but it's great for freezing.

Narrator: By making more ice. This is Svalbard, one of the coldest inhabited places in the world. The Norwegian archipelago is inside the Arctic where sea ice covers roughly 6.2 million square miles in late winter. In summer, as the weather warms, it melts to its lowest level, but that ice has been shrinking at a rate of around 13% per decade, which could have catastrophic consequences for the world.

In essence, it helps keep the planet cooler than it otherwise would be. So, if we start melting away the snow and the ice, we're gonna warm up faster.

Narrator: Sea ice reflects sunlight back into space, which means as it melts the Earth absorbs more heat. One study estimated that the complete disappearance of Arctic sea ice in summer would have the same warming impact as 1 trillion tons of carbon dioxide. That's more than double America's historic emissions. A Dutch startup is attempting to slow the melt by geoengineering the Arctic.

Why am I doing this? Well, I was first intrigued by the question, will it work? It's partly because I thought if I can do something in our battle to curb the climate change then I should just do it, and I should just go. I told my daughter I'm going out to try and create new ice so we can potentially save the polar bears. Ice fishing.

So, the Dutch way of trying to build ice rinks for ice skating marathons was really an inspiration for us for the ice-thickening project.

Narrator: This is the team's first field test at this site in the south of Svalbard. The startup has enlisted scientists from two universities to experiment with ice-thickening methods used by the Dutch Ice Masters.

What they do, the Ice Masters, as they call it, of these villages, they put thin layers of water on top of the ice to make it freeze faster. If we thicken enough of the ice we can maybe stop the decline so long that we can bring down the CO2 emissions, and the ice becomes regenerative by itself again.

Narrator: Similar methods are widely used in Canada where pumped water is frozen to create ice roads strong enough to carry the weight of trucks.

That's been done for decades already, and that really helps. There's a lot of engineering knowledge about that.

To see whether those methods could work to save the ice here in the Arctic, the team first needs to understand the environment they're in. To do this, they're drilling and taking samples, which allows the team to look inside the core of the ice.

So, it's quite a thick piece of ice already, but it has been very cold here the last months.

Narrator: This ice core currently measures around 36 inches. The team estimates they could add up to 14 more inches of thickness.

If we are really successful, that would be in the order of 1/3 of the core.

Narrator: They're taking out hundreds of ice cores across the testing area.

So, we take two of those in every site where we probe. And the purpose is to obtain the salinity of the ice, temperature and the density.

Narrator: The salinity, or simply how salty the ice is, is a vital question for the team to understand because when salt water freezes it creates small crystals that form into bigger ice chunks over time. During this process gravity expels the salt back into the water below it. The researchers need to understand how putting salty water on top will interact with this natural process.

Well, of course now we put it on top of a layer of snow and intact ice, so we don't know if there's sufficient time and sufficient drainage down or if it stays in some kind of small, highly salty layer which will maybe not even freeze because the salt water has a much lower freezing point.

Narrator: Understanding temperature variations within the ice is essential to knowing how well the experiment will work.

So, we drill a hole into the core as that is what the actual ice temperature is. I'm already at minus 4.5 right now, which is almost halfway in the ice core. So, outside temperatures are right now much colder around minus 17, minus 18, so that's why you see that the top part is much colder than the bottom part over here. 'Cause we're actually putting relatively warm water on top compared to what's maybe the temperature inside the core. So, we wanna see how this flooding is actually changing the temperature profile.

Narrator: At the heart of the experiment is technology to get the water onto the ice in the first place. By connecting these pumps underneath the ice, water is resurfaced to freeze again. The group is pumping over 900 gallons of water per minute for hours at a time. In total, they're covering an area roughly the size of two football fields with water. But how to power the pumps is a challenge.

Well, it's kind of ironic to use diesel to try to thicken the ice when we know that fossil fuel emissions are one of the reasons that we're thinning the ice and losing the ice.

Narrator: If the project is successful the startup aims to use renewable energy to power the pumps in the future.

So, that's one of the scaling challenges that we have, how to bring the renewable energy here, or maybe use local wind power, and how to do that in, yeah, conditions of minus 40.

Narrator: Other researchers are piloting more environmentally friendly technology to resurface sea water. Drones that can travel under the ice and pump water on top are in development. The company behind them aims to power them using green hydrogen. Other experiments include spreading a fine layer of reflective glass microbeads across the ice surface in a bid to bounce more sunlight back into the atmosphere. During one test the method slowed the rate of melting by around 30% according to a peer-reviewed paper. But all of these innovations will require large sums of investment and international cooperation. One estimate put the cost of scaling up similar projects at $500 billion. By comparison, one study estimated that the acceleration of climate change driven by a thawing Arctic could cause up to $130 trillion of extra economic losses over the next three centuries. However, critics warn about the unintended consequences of this well-intentioned tech.

If you try to regionally cool the Arctic, for example, but still warming up the rest of the planet that, again, that temperature difference between the pole and the equators, which drives a lot of our weather systems, that's gonna have, knock on consequences on our weather patterns. For me, the geoengineering solution would be to do more carbon capture, to come up with better ways to take the carbon out of the atmosphere.

Narrator: The researchers here are hoping their Arctic tests will be the first step at improving the case for this technology. Final results to see whether they slowed the rate of the melt will come later this summer. If successful, they will try to prove that ice thickening can be done at a much larger scale.

Our engineering companies have seen greater challenges than this.

Narrator: But even if this experiment is successful, on its own it's not enough. It's power to combat declining sea ice will ultimately hinge on the success of other efforts to cut emissions worldwide.

Exclusive: Inside the Radical Plan to Save the Arctic by Refreezing It

A global look at the economic and cultural forces shaping our world.

Exclusive: Inside the Radical Plan to Save the Arctic by Refreezing It

In-Depth Features

Up Next

At Barron's

View All

MarketBrief Clips

View All

MarketBrief Full Episodes

View All

Barron's Explains

View All

Barron's Streetwise

View All

Barron's Roundtable

View All

Barron's Investing in Tech Clips

View All

Wealth Gap

View All

Level Up

View All

Barron's Events

View All

Back to Business

View All

Great Investors

View All

MarketWatch

View All