Traffic warden Rai Rogers mans his street corner during an 8-hour shift under the hot sun in Las Vegas, Nevada on July 12, 2023, where temperatures reached 106 degrees amid an ongoing heatwave. More than 50 million Americans are set to bake under dangerously high temperatures this week, from California to Texas to Florida, as a heat wave builds across the southern United States.
Frederic J. Brown | Afp | Getty Images
If you feel like record-level extreme weather events are happening with alarming frequency, you’re not alone. Scientists say it’s not your imagination.
“The number of simultaneous weather extremes we’re seeing right now in the Northern Hemisphere seems to exceed anything at least in my memory,” Michael Mann, professor of earth and environmental science at the University of Pennsylvania, told CNBC.
Globally, June was the hottest June in the 174-year records kept by the National Oceanic and Atmospheric Administration, the federal agency said on Thursday. It was the 47th consecutive June and the 532nd consecutive month in which average temperatures were above the average for the 20th century.
The amount of sea ice measured in June was the lowest global June sea ice on record, due primarily to record-low sea ice levels in the Antarctic, also according to NOAA.
There were nine tropical cyclones in June, defined as storms with wind speeds over 74 miles per hour, and the global accumulated cyclone energy, a measure of the collective duration and strength of tropical storms, was almost twice its average value for 1991–2020 in June, NOAA said.
As of Friday morning, 93 million people in the United States are under excessive heat warnings and heat advisories, the National Weather Service Weather Prediction Center, according to a bulletin published Friday morning. “A searing heat wave is set to engulf much of the West Coast, the Great Basin, and the Southwest,” the National Weather Service said.
A person receives medical attention after collapsing in a convenience store on July 13, 2023 in Phoenix, Arizona. EMT was called after the person said they experienced hot flashes, dizziness, fatigue and chest pain. Record-breaking temperatures continue soaring as prolonged heatwaves sweep across the Southwest.
Brandon Bell | Getty Images News | Getty Images
Flooding in downtown Montpelier, Vermont on Tuesday, July 11, 2023. Vermont has been under a State of Emergency since Sunday evening as heavy rains continued through Tuesday morning causing flooding across the state.
The Washington Post | The Washington Post | Getty Images
On June 27, Canada surpassed the record set in 1989 for total area burned in one season when it reached 7.6 million hectares, or 18.8 million acres. And the total has since increased to 9.3 million hectares, or 23 million acres, which is being driven by record-breaking high temperatures, turning the vegetation into kindling for wildfires to race through.
A view of the city as smoke from wildfires in Canada shrouds sky on June 30, 2023 in New York City, United States. Canadian wildfires smoke creating a dangerous haze as the air quality index reaches 160 in New York City. People warned to avoid outdoor physical activities and for those who spend time outdoors recommended to use well-fitting face masks when air quality is unhealthy.
Anadolu Agency | Anadolu Agency | Getty Images
In all of 2022, there were 18 separate billion dollar weather and climate disaster events according to data from NOAA, including tornado outbreaks, high wind, hailstorms, tropical cyclones, flooding, drought, heatwaves and wildfires. So far, there have been 12 billion-dollar weather and climate disasters in 2023, according to NOAA.
More from CNBC Climate:
“This year will almost certainly break records for the number of extreme weather events,” Paul Ullrich, professor of regional and global climate modeling at University of California at Davis, told CNBC.
Global warming is making extreme weather events more severe, scientists said.
“Our own research shows that the observed trend toward more frequent persistent summer weather extremes — heat waves, floods, — is being driven by human-caused warming,” Mann told CNBC.
Ullrich agrees. “Increases in the frequency and intensity of heatwaves, floods and wildfires can be directly attributable to climate change,” Ullrich told CNBC.
Wildfire burns above the Fraser River Valley near Lytton, British Columbia, Canada, on Friday, July 2, 2021. A protracted heat wave continues to fuel scores of wildfires in Canada’s western provinces, with Prime Minister Justin Trudeau calling an emergency meeting of a cabinet crisis group to address the matter.
Bloomberg | Bloomberg | Getty Images
“Through the emission of greenhouse gases, we have been trapping more heat near the surface, leading to increases in temperature, more moisture in the air, and a drier land surface,” Ullrich said. “Scientists are extremely confident that an increasing frequency and intensity of extreme events is a direct consequence of human modification of the climate system.”
El Niño is like adding lighter fuel to an already smoldering fire. “Under recently emergent El Niño conditions, temperatures are pushed higher worldwide, further compounding increases in temperature brought on by greenhouse gas emissions,” Ullrich said.
That combination of anthropogenic climate change and El Niño is “spiking some of these extreme events,” Mann said.
Animation of sea surface temperatures for past 6 months
NOAA
El Niño, which means “little boy” in Spanish, happens when the normal trade winds that blow west along the equator weaken and warmer water gets pushed o the east, toward the west coast of the Americas. In the United States, a moderate to strong El Niño in the fall and winter correlates with wetter-than-average conditions from southern California to the Gulf Coast, and drier-than-average conditions in the Pacific Northwest and Ohio Valley.
When global warming and El Niño are hitting at the same time, “it can be difficult separating what is just a weather event or if it is part of a longer trend,” Timothy Canty, professor in the department of atmospheric and oceanic science at University of Maryland, told CNBC.
But what is clear is that climate change makes it more likely that an extreme weather event will happen.
“Higher temperatures from climate change are indisputable, and with each degree increase we’re multiplying our changes of getting an extreme heat wave. In the wetter regions of the world, including the Northeastern US, we’re expecting more rain and more intense storms,” Ullrich told CNBC. “To avoid even more extreme changes, we need to both reduce our reliance on fossil fuels and act to clean up our polluted atmosphere.”
And as long as global greenhouse gas emissions continues to increase, the trend of more and more frequent extreme weather is expected to continue, Mann says.
Decreasing the greenhouse gas emissions released into the atmosphere by burning fossil fuels will help moderate the extreme weather trends.
An infographic titled “Sea ice in Antarctica drops to lowest level in 43 years” created in Ankara, Turkiye on March 01, 2023. The sea ice level surrounding the Antarctic continent has dropped to its lowest level since 1979.
Editorial #:1247611891, Getty Premium
“The good news is that the latest research shows that the surface warming driving more extreme weather events stabilizes quickly when carbon emissions cease. So we can prevent this all from getting worse and worst by decarbonizing our economy rapidly,” Mann told CNBC.
Every person’s contributions to reducing their climate footprint helps, Canty says.
“People have asked me essentially ‘What can I do as an individual that matters?’ and decide not to do anything and instead blame everyone else. Honestly, it’s societies made up of individuals that have gotten us to this point,” Canty said.
Individuals can reduce their greenhouse gas emissions by making small changes like turning off the lights when they’re not in a room, turning down the heat or up the air conditioning when they’re not home, avoiding food waste and using public transportation.
Voting also matters a lot, Canty said. Government leaders have been able to make successful progress on international environmental crises in the past, Canty said, pointing to the Montreal Protocol. “There is a roadmap for working together to fix environmental problems in ways that benefit everyone,” Canty said.
“Tackling the ozone hole required governments, scientists, and businesses to work together and the Montreal Protocol and its amendments have been very successful not only for ozone but for climate,” Canty said, noting that the same chemicals that deplete the ozone, chlorofluorocarbons, are also very bad greenhouse gasses. “The ozone hole is slowly recovering and because of actions taken in the 80s we’ve avoided even worse planetary warming, and we still have air conditioning and hair spray which seemed to be the big panic at the time.”
If individuals and organizations don’t commit to aggressively reducing their greenhouse gas emissions, however, then this battery of extreme weather is a harbinger of the future.
“If we fail to act what we’re seeing right now is just the tip of the proverbial — melting — iceberg,” Mann told CNBC.
Four years ago, financial advisor Ric Edelman went out on a limb in saying everyone should hold cryptocurrencies. But how much? Low single digits was his recommendation.
In his “The Truth about Crypto” book in 2021, Edelman said as low as a 1% allocation was reasonable.
A lot has changed.
This week, Edelman said financial advisors should be recommending anywhere from 10% to 40% allocations to cryptocurrencies, and he is aware it’s quite a shift in his own thinking.
“Today I am saying 40%, that’s astonishing,” he told CNBC’s Crypto World in an interview. “No one has ever said such a thing.”
But the “why” is the more important thing.
For one, it’s because of the massive change seen in the industry, what he called “the evolution of crypto in the past four years,” he said.
Four years ago, Edelman said, we didn’t know if governments would ban bitcoin, or if the technology would be obsolete, and if consumers and institutions would adopt it.
“Today, all those questions have been resolved,” said Edelman, who heads the Digital Assets Council of Financial Advisors. “It’s radically changed and is now a mainstream asset.”
For sure, the more mainstream crypto becomes, the more it will feature across investment portfolios. Bitcoin ETFs have been taking in billions this year, among the top asset classes in ETF inflows this year, one sign of crypto’s arrival on the radar of more financial advisors and long-term investors.
The other big shift Edelman sees longer-term, and just as important to his view of crypto allocation, is the end of the traditional 60/40 model of long-term investing, with 60% in stocks and 40% in bonds, which Edelman says is obsolete due to increased longevity, and life expectancy in the U.S., that has risen from 47 in the 1900s to 85 today, and is projected to potentially reach as high as 100 over the next 30 years if technological advances related to medicine proceed.
“If you’re a financial advisor and you had a 30-year-old client who was saving for their long-term future, you would tell them to put 100% of their money in stocks, because they have 50 years to go,” said Edelman. “Today’s 60-year-old is kind of like yesterday’s 30-year-old,” he added.
“You need to get better returns than you can get from bonds and you need to hold equities longer than ever before,” Edelman said. And as that allocation model shifts away from the classic 40% bond allocation, he said crypto needs to play a much bigger role in investing.
“Bitcoin prices don’t move in sync with stocks or bonds or gold or oil or commodities,” Edelman said.
He added that investors are starting to recognize it as a “wonderful way to improve modern portfolio theory statistics. “The crypto asset class offers the opportunity for higher returns that you’re likely to get in virtually any other asset class,” Edelman said.
Some analysts predict bitcoin will hit $150,000-$250,000 by the end of this year and $500,000 by the end of this decade. Edelman said, “That’s a conservative estimate compared to what others are saying.”
In other crypto news of note on Friday:
Crypto hacks hit a new record in the first half of the year. According to TRM Labs, bad actors raked in over $2.1 billion in at least 75 different hacks and exploits, setting a new record. Attacks on crypto infrastructure, like stealing private keys and seed phrases or compromises of front-end software, accounted for over 80% of the funds stolen in 2025’s first half.
Trump housing advisor tells CNBC about crypto mortgage plan. Bill Pulte, the director of the Federal Housing Finance Agency, joined CNBC’s “Money Movers” on Friday to discuss the plan he released this week to have Fannie Mae and Freddie Mac count crypto as a federal mortgage asset.
Senate targets end of September for crypto bill. Senator Tim Scott, chairman of the Senate Banking Committee, said at an event on Thursday that legislation to establish rules for U.S. crypto markets will be finished by the end of September.
You can can catch more on those headlines in today’s Crypto World episode above.
People watch as the logo for Coinbase, the biggest U.S. cryptocurrency exchange, is displayed on the Nasdaq MarketSite jumbotron at Times Square in New York on April 14, 2021.
Shannon Stapleton | Reuters
Coinbase is the top performer in the S&P 500 in June, boosted by positive regulatory updates, product launches and, of course, its very inclusion in the benchmark stock index at the end of May.
The crypto exchange’s outperformance in the S&P 500 extends back to the April 8 market low, just after President Donald Trump’s initial sweeping tariffs announcement sent stocks sinking.
Coinbase is now on pace for its best month since November, third straight monthly gain — 43% in June alone — and its first three-month rally since the end of 2023. On Thursday, the stock hit its highest level since the day of its initial public offering in 2021.
“The two things holding Coinbase back were the issues of fee compression — it hasn’t happened and in fact, Coinbase has been generating positive earnings consistently, which is why they were included in the S&P 500 — and regulatory uncertainty,” he said. “Many people don’t believe there will be any consensus coming out of Congress … the fact is we’re seeing the passage of the GENIUS Act.”
Even with Coinbase’s 44% run this month, the stock has room to appreciate further, according to Devin Ryan, head of financial technology research at Citizens. He said the market isn’t fully connecting the dots around Coinbase’s close relationship with Circle Internet Group. Circle debuted on the New York Stock Exchange June 5 and has soared more than 500% since.
According to a revenue share agreement, Coinbase keeps 100% of the revenue generated on all USDC held on Coinbase, plus nearly 50% of all other USDC revenues, “which is 99% of Circle’s current revenue,” Ryan said.
USDC is the stablecoin issued by Circle. Stablecoins are a subset of cryptocurrencies pegged to the value of real-world assets. About 99% of all stablecoins are tethered to the price of the U.S. dollar.
Another way to play
“Yet, Coinbase doesn’t incur any of the operating costs borne by Circle,” Ryan said. “If the market is right on the current bullish view for Circle, Coinbase is another way to play that — and with the financial connection described, it would seem there’s a lot more value left in Coinbase.”
Coinbase, whose core business is crypto trading, has been expanding its suite of crypto services over the past several quarters to include areas like custody, staking, wallet services and stablecoins.
This month, the company beefed up its subscription plan by offering it with its first crypto-backed credit card in partnership with American Express. It also introduced a partnership with Shopify and debuted a stablecoin payments service for e-commerce. JPMorgan also partnered with the crypto company to launch its own version of a stablecoin, which it’s calling a “deposit token” on Coinbase’s in-house built blockchain, Base.
“There’s clearly a sentiment trade occurring in crypto as institutional investors are looking at the space, many for the first time, and want to express a positive view on crypto evolving from a speculative asset class to one of utility — with legislative clarity as the key catalyst — and Coinbase is the most direct way to invest in that thesis,” Ryan said.
Volume concern
If there’s one concern, it’s in trading volume, said Oppenheimer’s Lau. The average daily volume of crypto transactions on the Coinbase platform has been trending lower since April, which could be a risk for the company and other crypto trading providers heading into the second half of the year.
The analyst is optimistic the regulatory outlook can turn that around though, specifically if the industry gets market structure legislation on top of stablecoin legislation.
“If the GENIUS Act brought us to ‘stablecoin summer’ then I believe that the eventual passage of the CLARITY Act can bring us into altcoin summer,” Lau said. “So at the end of this year, I do see another catalyst that can reverse this trend because there will be animal spirits, people will be buying altcoins like crazy if we get past the market structure bill.”
Don’t miss these cryptocurrency insights from CNBC Pro:
It doesn’t quite have the buzz of artificial intelligence, but quantum computing is having a moment of its own.
Some of the most powerful institutions in the world, including Google, Microsoft, Amazon, IBM and the U.S. government, are spending many millions of dollars in a race to develop and build the first practical quantum computer.
Startups focused on quantum technology attracted about $2 billion last year, according to a McKinsey & Co. report, as investors pile into an industry that could have nearly $100 billion in revenue within a decade.
There isn’t much business today, though. In total, quantum computing companies generated under $750 million in revenue in 2024, according to the same report.
But more and more, we’re hearing about a big breakthrough.
In the past year, Microsoft unveiled its first quantum chip, Google executives said the technology may only be five years away, Amazon showcased its error-correcting quantum processor and IBM outlined its plan to build a meaningful quantum computer by 2029.
Joining them are scores of smaller companies and universities working on the underlying mathematics, software or potential business model. Some of the companies are even publicly traded, and can see their stocks soar or collapse based on a kernel of news.
In January, Nvidia CEO Jensen Huang sent quantum computing stocks reeling when he said 15 years was “on the early side” in considering how long it would be before quantum computing would be useful. He said at the time that 20 years was a time frame that “a whole bunch of us would believe.”
Two months later, he walked back the comments, but also expressed surprise that they moved markets, or that there were even markets to be moved.
“How could a quantum computer company be public?” Huang said in March.
Right now, there isn’t anything useful that quantum computers can do. They’re purely for research.
But the promise is clear. If the technology works, it can crunch certain kinds of numbers and do some tasks that are currently impossible on a traditional computer, or that would require so much time that the universe would end before they were completed.
To imagine a quantum computer, you have to fundamentally change how you consider what it means to compute.
A traditional computer works because there are billions of transistors on every chip. Those transistors can be ones or zeros — on or off. In large numbers, transistors can represent nearly every number, refer to parts of the system’s memory, and do arithmetic. That’s how every computer in the world works today.
In a quantum computer, the system uses qubits instead of transistors. It’s far more complicated than ones and zeros. Whether qubits are on or off is determined by quantum mechanics, and all of the qubits are “entangled,” which means a change in one will affect the probability of the others.
Making qubits work can require significant infrastructure. For example, some quantum computers have to be operated at very cold temperatures, near absolute zero.
So far, a lot of the applications for quantum have to do with simulating chemistry and physics.
“Quantum computers will not be the compute of choice for every application, and that’s OK,” said Krysta Svore, Microsoft’s vice president of advanced quantum development. “Even if we just use quantum computers for material science and chemistry, 96% of the world’s manufactured goods rely on chemistry and material science.”
Encryption
There’s one well-understood use for quantum computing today: encryption. That’s why the U.S. government and others around the world are closely tracking the technology’s development. It matters for national defense.
“The fear is that quantum computers will be able to crack our digital secrets,” said John Young, operating chief at the Americas division of Quantum eMotion, a quantum security company.
Currently, most passwords, WhatsApp texts, financial transactions and other important messages are encrypted, which means they’re scrambled and can’t be read if the data is stolen or observed. But quantum computers will be able to factor numbers quickly, which could allow hackers or other attackers to efficiently find the codes needed to decrypt important secrets.
Security researchers worry about what they call Q-Day, or the day when an effective quantum computer is created. They predict chaos when passwords and encryption start to mysteriously fail.
“Alongside its potential benefits, quantum computing also poses significant risks to the economic and national security of the United States,” the Biden White House said in 2022, in a national security memo. A cryptographically relevant quantum computer “could jeopardize civilian and military communications, undermine supervisory and control systems for critical infrastructure, and defeat security protocols for most Internet-based financial transactions,” the memo said.
There’s no practical application or algorithm that can be run on a quantum computer that can’t today be accomplished on a normal silicon-based, digital computer.
However, several groups say they’ve proven “quantum supremacy,” indicating that they’ve run a problem on a quantum computer that would’ve taken far longer with a traditional computer. The actions were all abstract.
Google was the first to declare quantum supremacy in 2019, describing its quantum computer’s accomplishment as a “benchmark.” The task it performed is called random circuit sampling, which is basically only used to test quantum computers.
Google says that researchers gave a computer random instructions to make a problem as complex under quantum mechanics as possible. Its researchers were then able to show that a quantum computer is faster at deciphering the quantum problem. Last year, Google said that its new, faster quantum computer Sycamore had expanded the performance gap.
In terms of future real-world applications, most of the potential for quantum computers is in the realms of medicine, chemistry and materials research.
Google points to drug discovery, or finding molecules that could be useful medicines. It also says that quantum computers will be able to do the science needed to commercialize fusion energy.
When Microsoft announced its first quantum chip in February, the company highlighted chemistry and materials science problems, like why some materials corrode, or how to compost plastic.
There is also some optimism that quantum computers will be well suited for generating training data for AI applications, especially for situations or problems with a huge number of potential solutions.
A general view of the Pentagon in Washington, D.C., U.S., March 21, 2025.
Kent Nishimura | Reuters
A Google researcher maintains a webpage that catalogs many of the most prominent quantum algorithms.
The most famous is Shor’s algorithm, which showed that a quantum computer would be able to find prime factors of a large number far faster than is currently possible on a digital computer.
When the algorithm was discovered in 1994, it ignited some concern from militaries around the world. Many of them use an encryption method called RSA, which needs the process of factoring large numbers to be difficult in order to keep data secret.
Worry about China
The fear is that a quantum computer would allow an adversary like China to quickly decode U.S. military messages or consumer banking transactions.
“Without effective mitigation, the impact of adversarial use of a quantum computer could be devastating to [national security systems] and our nation,” the Pentagon said in 2021.
Microsoft has acknowledged the national security factor, and has even framed quantum security as a race against China.
“While most believe that the United States still holds the lead position, we cannot afford to rule out the possibility of a strategic surprise or that China may already be at parity with the United States,” Microsoft President Brad Smith wrote in a blog post in April.
The government has led an effort to move encryption to so-called post-quantum methods, which can’t be broken by a quantum computer. Companies such as Apple have already started to integrate post-quantum encryption into its services like iMessage.
But past communications can still contain secrets. Intelligence agencies and other hackers often collect encrypted data in the expectation that one day it can be decrypted.
For now, much of the work in quantum is still fairly academic.
Most of the advanced hardware companies today are working on “error correction,” or a variety of methods meant to reduce the number of errors, and make them less harmful when they happen.
In present-day quantum computers, the qubits fail as often as 1 out of 1,000 times they are used, according to Microsoft researchers. Microsoft said last week that it was able to reduce the error rate by 1,000-fold thanks to a new approach.
Several improvements in error correction have been announced over the past year, which is one reason why researchers and engineers are increasingly confident that they’ll be able to build a quantum computer.
The next issue to address is scaling up the computers.
Google’s new Willow chip has 105 qubits. Microsoft’s Majorana chip has eight. IBM’s Starling plans to have 200 qubits. Amazon’s Ocelot chip has 14 qubits. In the coming years, these numbers have to go way up. Google and Microsoft say a truly useful quantum computer will need 1 million qubits.