Learn how helium is used in the US, the world's largest producer of the noble gas

View a ranking of the countries with the largest helium reserves, led by the US

Estimated at 20.6 billion cubic meters (727.5 billion cubic feet) as of 2022, US helium reserves are more than double those of Qatar, the second nation on the list. Leading the world in natural gas production, from which helium is recovered, the US also leads global helium production, which helps mitigate shortages resulting from overseas geopolitical tensions.

As of 2025, the US and Qatar dominate global helium production

The US's 42.6% share includes helium imported from Canada and refined within the states. Geopolitical conflicts can cause supply disruptions that impact several advanced technologies, including semiconductor manufacturing, aerospace systems, and medical imaging.

A visit to the Federal Helium Reserve, which once supplied up to 30% of US helium

The underground storage facility in Amarillo, Texas, was established by the Helium Act in 1925, when helium was viewed as a strategic resource whose export could enable other nations to use it for military airships. The Helium Privatization Act of 1996 instructed the Department of the Interior to begin selling off the facility and reserve, with the final sale occurring in 2024.

Why stories about helium 'running out' indicate market volatility rather than scarcity

Only a few locations on Earth contain natural gas reserves with sufficiently high helium concentrations to make their extraction commercially viable, and geopolitical conflicts in these areas significantly affect helium production. This makes cost a major impediment to helium availability, particularly for scientific research, amid growing demand and ongoing depletion of reserves that took billions of years to form.

An overview of helium, the nonrenewable resource that's lighter than air

The second element in the periodic table naturally forms deep underground over the course of billions of years through the decay of radioactive elements, but it is used and lost to space at rates faster than it is generated. Because of this and its extensive applications in scientific technologies, scientists continue to seek avenues for its exploration, storage, and recycling.

The industrial methods for recovering helium, including filters and cryogenic separation

Membranes with microscopic pores of varying sizes can be used to selectively filter out components of natural gas, including helium, which can then be concentrated. Because helium requires the lowest temperature of all elements to condense into a liquid, extracted natural gas can also be cooled until only helium remains as a gas.

Why helium mixtures are used in respiratory medicine

Unlike the air near Earth's surface, which is primarily composed of oxygen and nitrogen, heliox is composed entirely of oxygen and helium. Because helium is lighter than nitrogen, the lungs do not have to work as hard to push air, easing the uptake of oxygen via a ventilator, mask, or nasal tube.

Helium formation, from radioactive decay inside Earth to nuclear fusion within stellar cores

Over the course of billions of years, uranium and thorium undergo alpha decay, producing helium nuclei—two protons and two neutrons—which become helium atoms after gaining two electrons. This helium becomes trapped in underground reservoirs along with other gases and can be recovered during natural gas extraction.

Explore which sectors produce the most greenhouse gas emissions by country

As of 2023, the energy sector, including electricity and heating, accounts for the largest share of greenhouse gas emissions. The 10 largest greenhouse gas-emitting nations account for two-thirds of global emissions, with the world's top three—China, the US, and India—contributing 15 times more than the bottom 100.

With a reported value of $20M per kilogram, space resource extraction companies are seeking to harvest helium-3 from the moon for its potential use in clean nuclear fusion.

As of 2022, the US accounted for nearly one-fifth of global oil production

By 2022, the US had cemented its position as the world’s top oil producer with close to 18 million barrels per day. This eclipsed Saudi Arabia and Russia.

Why helium helped preserve the US' founding documents, but was later replaced

In 1951, the Charters of Freedom were stored in glass and metal cases filled with helium, which would not chemically react with the documents. After microscopic cracks were identified in the glass through which helium could leak out of and—experts feared—pollutants could infiltrate, new encasements made of aluminum, titanium, and argon replaced the old system in 2003.

Carbon dioxide is the most produced greenhouse gas from human activities

In 2022, about 79.7% of US greenhouse gas emissions were carbon dioxide, produced through chemical reactions in processes such as cement production and the burning of fossil fuels, solid waste, trees, and other biological materials. Methane (11.1%), nitrous oxide (6.1%), fluorinated gases (3.1%), and trace amounts of solid and liquid aerosol were also created.

About 10% of the world's crude oil and 32% of its natural gas is reached via fracking

Most of the world's shale oil resources—which are recoverable via fracking—are found in Russia, the US, China, Argentina, and Libya. The majority of equivalent shale gas resources are found in China, Argentina, Algeria, the US, Canada, and Mexico.

Why the ratios of helium isotopes are analyzed to investigate ocean circulation

Volcanic activity on the seafloor produces high ratios of helium-3 to helium-4, which can be tracked in ocean samples more easily than other elements because helium is nonreactive. Water from deep ocean currents can also be distinguished from air-exposed surface water sources by comparing these ratios, since atmospheric helium ratios are much lower.

How helium greatly improves the efficiency of barcode-scanning lasers

Rather than directly energizing neon atoms, electrical discharge at lower, more practical power levels can excite helium atoms to energy levels nearly equal to those in neon atoms. Within a helium-neon laser, these gases are present in a 10-to-1 ratio, enabling helium to efficiently transfer energy to neon, which is then discharged as red light.

As of 2024, China is the largest overall contributor to global greenhouse gas emissions

Due to its large population, the nation's per capita emissions continue to lag behind those of the US, Canada, Russia, Australia, and Saudi Arabia. The Arab country has experienced the most significant increase in per capita greenhouse gas emissions since 1990, now leading the world at 22.8 metric tons of carbon dioxide equivalent per capita.

View a step-by-step breakdown of how helium is forged in stars alongside antimatter

During the proton-proton chain, four hydrogen nuclei—protons—are fused together to create an alpha particle—a helium nucleus—and produce the energy that supports a star's own weight. Through radioactive decay, two of these protons become neutrons, with each releasing an antielectron, or positron, and an electron neutrino.

The properties of helium, which has the lowest boiling point of any element

The colorless, odorless, mainly unreactive element condenses from a gas into a liquid at -268.928 degrees Celsius (-452.07 degrees Fahrenheit)—near the lowest theoretically possible temperature—allowing it to serve as a liquid coolant in machines without the risk of causing damage as a solid.

Most of the critical mineral supply needed for US data centers is imported

The country with the most data centers relies on other nations for about 80% of the rare earth elements needed for magnetic materials in storage drives, 64% of the silver and 85% of the platinum it uses for electrical circuitry, and about half the aluminum and copper used in heat sinks that dissipate thermal energy from electronic components.

Nitrous oxide is the third most significant greenhouse gas made by human activities

Emissions of this molecule increased 40% from 1980 to 2020, with atmospheric concentrations reaching levels higher than at any other time in the last 800,000 years, based on ice core records. Its warming potential is 273 times that of carbon dioxide over 100 years and remains in the atmosphere for more than a century, on average.

Why Earth's atmosphere constantly loses the universe's lightest elements to space

The masses of hydrogen and helium are too small for these gases to be held by Earth's gravitational force, particularly when these atoms are given energy from collisions with high-speed particles from the sun. Although the planet loses a meter-wide balloon's worth of hydrogen every second, it will still take billions of years to exhaust the planet of this element.

How specialized oxygen mixtures like heliox enable deep diving without feeling drunk

Beyond a depth of about 30 meters (98 feet), if divers are breathing surface air, which is about 78% nitrogen, underwater pressure forces more nitrogen into the bloodstream and induces nitrogen narcosis, whose symptoms resemble alcohol intoxication. Through saturation diving, where nitrogen is replaced with helium—an inert gas—deep divers can maintain cognitive function while working for extended periods.

About 99% of Earth's atmosphere is made of nitrogen and oxygen

At 78% and 21% respectively, the two elements are followed by argon with almost 1%. Trace amounts of other molecules, including greenhouse gases such as methane and carbon dioxide, and particulate matter such as dust and pollen, make up the remainder of the atmosphere's contents.

Understanding why the US can't use its own crude oil and depends on global markets

Before advancements in fracking technology made lighter shale oil readily available, US refineries had been built and optimized for decades to process heavier oil from other countries with high profitability. Despite being able to refine lighter oil, US oil companies can operate with better margins by exporting it to other nations whose refineries are optimized for it and importing heavier oil, for which the US has the infrastructure.

The world derives more of its energy from oil than from any other resource

Coal and gas are second and third, respectively, in terms of where the bulk of the world’s energy consumption stems from. These interactive charts can help you visualize where the world sources the most of its energy.

How lithium has become one of the world's most important elements

Lithium is the driving force behind electric vehicles as the key element in the lithium-ion batteries that power the cars. But as demand for EVs rises, will global lithium supply keep pace with demand? This report projects demand will reach up to four million metric tons of the mineral compound containing lithium by 2030, with batteries accounting for 95% of end-use applications.

In 2019, the US became a net energy exporter thanks to the fracking boom

The US began exporting more energy than it consumed that year, making it a net energy exporter. Energy imports have decreased every year since 2007, as improved technology has increased the number of accessible domestic oil and natural gas reserves.

How helium enables MRI machines to look inside organisms

By cooling the machine's magnets with liquid helium to extremely low temperatures, they can generate and maintain powerful magnetic fields that align the hydrogen atoms in living things to point toward a patient's head or feet. A radio pulse nudges these atoms, which realign and induce a measurable signal in nearby electrical coils. These signals are captured in slices and then stacked into a 3D reconstruction.

As of 2024, the nation with the largest proven oil reserves is Venezuela

According to estimates derived from available geological and engineering data, the South American country possesses about 303 billion barrels of underground crude oil, followed by Saudi Arabia (267.2 billion) and Iran (208.6 billion). Many of the largest reserves are held by members of the Organization of the Petroleum Exporting Countries.

The world's wealthiest 10% are responsible for 48% of greenhouse gas emissions

An analysis by the International Energy Agency found that in 2021, the top 1% of emitters each produced over 50 metric tons of carbon dioxide, over 1,000 times the amount produced by those in the bottom 1%. The average energy-related carbon footprint, including household heating and electricity use, was about 4.7 metric tons per person.

The US shipped nearly 4 billion barrels of oil abroad in 2024

More than half of the US’s oil is exported as the country produces mainly light, sweet crude but has many refineries that handle heavy, sour types.

Once cooled to temperatures just above 2 Kelvin, helium atoms exhibit a quantum property that removes internal friction, allowing the fluid to climb up walls.

Gulf nations produce about 40% of the world's desalinated water

According to a 2023 report, six Gulf states produced 1.9 trillion gallons of freshwater across more than 400 desalination plants along their coasts. These plants create water suitable for human consumption by boiling saltwater and collecting steam or using high-pressure pumps to push seawater through a filter that only allows water molecules through.

Unlike hot air balloons lifted for hours by heating air, NASA's scientific balloons use helium to lift payloads of up to 3,600 kilograms (8,000 pounds) for up to six weeks at a time.

View a list of 50 minerals critical to US economic and national security

Most of the US's supply of critical minerals depends on countries that have historically competed with it, which has raised concerns in Washington. These minerals are needed for green technologies to meet greenhouse gas emission reduction goals.

Hear Steve Ballmer explain how US gas prices are affected by the global price of oil.

A person's voice sounds different when breathing helium, sulfur hexafluoride, or gases other than air because the speed of sound varies with the properties of the material through which it travels.

Explore a map of data centers worldwide, numbering over 12,250 as of August 2026, with over 4,500 in the US.

HALEU, or High-Assay Low-Enriched Uranium, is a next-generation nuclear fuel with higher energy density—three tablespoons of it are enough to supply the average person's electricity use for their entire lifetime.

View a breakdown of worldwide oil production since 1900, mostly led by the US

When analyzing the production of crude oil, shale oil, oil sands, and condensates since the start of the 20th century, Saudi Arabia produced more crude oil only in 1977, from 1979 to 1981, and from 1991 to 2016. Nations such as Iraq and the United Arab Emirates produced much smaller quantities than both Saudi Arabia and the US.

The US produces far more waste and recycles far less of it than other developed countries

The US represents just 4% of the world’s population, but it produces 12% of global municipal solid waste. In comparison, China and India make up more than 36% of the world’s population and generate 27% of that waste.

The widespread need for rechargeable batteries has fueled surging lithium demand

As of 2025, the average person uses 27 times more mined lithium than they did in the 1990s, with the US ranking second globally in consumption despite producing less than 1% of global supply. However, potential alternative materials and boom-and-bust cycles have challenged the profitability of mines and future demand for the mineral.

Learn how aquifers and wells provide the largest reserves of accessible freshwater on Earth

Roughly a third of Earth's freshwater is stored underground in aquifers—permeable and porous rock formations where water naturally flows from the Earth's surface and accumulates. About half of this groundwater is accessed through wells, a feat of engineering used for thousands of years.

Nearly 90% of the world's 12,187 nuclear warheads are held by Russia and the United States.

Chile, Argentina, and Bolivia hold more than 75% of the world’s supply of lithium

Despite the dependence of phones, laptops, electric cars, and other technologies on the soft, silvery-white metal for their batteries, residents of the Lithium Triangle have not seen the benefits of investments into mining this critical mineral, and have instead faced water shortages and pollution.

The US exported more crude oil and petroleum products than it imported in 2025

In fact, the US has been exporting more oil and petroleum products than it imports since August 2021. Petroleum and petroleum product exports totaled about 10.7 million barrels per day, whereas imports totaled about 7.9 million barrels per day.

The Large Hadron Collider is the world's largest cryogenic system, which uses 10,000 metric tons of liquid nitrogen and 120 metric tons of helium to cool 36,000 metric tons of magnets to temperatures colder than outer space.

Stratospheric balloons: a visual guide

In late January 2023, a Chinese high-altitude balloon, believed to be for surveillance purposes, traversed the US and caused a diplomatic stir. The technology itself is established—though typically used for atmospheric measurements. This visual...

Methane: the other greenhouse gas

While most of the focus with respect to greenhouse gases lands on carbon dioxide, methane is the second most potent contributor. The gas, a carbon atom with four hydrogen atoms, is 25 times more potent than CO2 in terms of trapping heat over a 100...