Drought conditions force fewer ships to sail the Panama Canal daily

Container ships are just a fraction of total traffic via the canal

While more container ships traverse the canal than any other type of ship, vessels carrying dry bulk goods, vehicle carriers, chemical tankers, passenger ships, and more also pass through the Central American passageway.

The century of the Panama Canal

The Panama Canal connects the Atlantic and Pacific Oceans through a 51-mile route that transformed global shipping when it opened in 1914. This breakdown covers how it was built, the workers behind its construction, and why its future may be challenged by climate and competition.

See the real-time numbers of ships traversing the canal each day

This platform uses satellite data to track chokepoints and trade disruptions along the shipping lanes that crisscross the globe. Search for data from more than 1,600 ports, or run the climate scenario simulator.

Watch a ship pass through the Panama Canal

Many of the world’s cargo ships are built to be as large as possible while still being able to fit through the Panama Canal’s narrowest locks. The size standard even has a name: Panamax (and, since the canal’s expansion in 2016, Neopanamax). To avoid running against the canal walls, locomotives hold the vessels in place as the chambers are filled and emptied.

Nearly all American skilled workers deserted the canal worksite the first year

More than 75,000 workers labored to build the Panama Canal, and up to a third of them, by some estimates, died on the job. This gallery of 16 archival black-and-white photographs from PBS shows what life was like for the workers.

The canal project required the forced removal of local inhabitants

The canal displaced Panamanian communities, with towns like Gatun and Gorgona dismantled and farmlands lost, reshaping the region forever.

The US handed control of the canal back to Panama in 1999

This was the result of two treaties signed during President Jimmy Carter's presidency, one shifting control to Panama and the other declaring the canal zone neutral. In recent years, US officials have suggested the US may retake control. Experts agree that the only viable way would be through military force.

The Erie Canal reduced freight costs by 90%

Before the canal, shipping goods overland cost about $100 per ton. After its completion in 1825, rates fell to just $10—making western farm products competitive in eastern markets for the first time.

Explore an interactive map of global water gaps, caused by demand surpassing replenishment

Humans extract 4,000 cubic kilometers of water from natural systems annually—eight times more than a century ago—creating regions where freshwater demand surpasses available reserves. The depletion of shallow aquifers has driven tapping into deeper, nonrenewable ones, threatening ecosystem sustainability.

One in five 16th century Spanish ships sank while crossing the Atlantic

Despite the incredibly high rate of catastrophic wrecks, during the Age of Exploration Spanish investors continued to fund voyages. Here, economists break down the incentives that led to increased risk, including short travel seasons and the propensity to overload ships.

COVID-19 disruptions revived ancient chinampa farming in Mexico City

When the pandemic disrupted food supply chains, chinamperos—farmers who cultivate the Aztec-era “floating gardens” built atop shallow lakebeds—shifted to direct sales in the city, boosting their visibility and reconnecting residents with a longstanding local agricultural tradition.

The number of annual oil spills has dropped dramatically since the 1970s

Oil spills from oil tankers—which can have a sharp, short-term impact on oil prices—have become increasingly rare over the decades in part because of stricter regulations.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

In June 2025, apprehensions of illegal border crossings at the US-Mexico border reached an all-time low

Total US-Mexico border encounters fell to just 25,228—the lowest monthly figure ever recorded by Customs and Border Patrol—with only 8,024 Border Patrol apprehensions and a single-day low of 136 detentions on June 28.

How key commodities have performed since 2019, visualized

Due in part to factors such as the COVID-19 pandemic and global supply chain issues, commodities experienced significant volatility from 2019 to 2025. For instance, coffee bean prices saw major swings in recent years due to climate challenges in countries including Brazil and Vietnam.

The global impacts of the 1877 'super' El Niño and what could result from similar future events

The 1877 El Niño event lasted approximately 18 months, raised temperatures in the Niño 3.4 region of the equatorial Pacific Ocean by 2.7 degrees Celsius (4.86 degrees Fahrenheit) above average, and contributed to a global famine that killed more than 50 million people. Such events are expected to exacerbate drought-related risks to global food security, driving up food prices worldwide. (Some readers may experience a paywall.)

Amazon deforestation down by a third in 2023

Read this article to understand how Brazil's President Luiz Inácio Lula da Silva, who started his term on January 1, 2023, has been successful in reducing deforestation in the Amazon region. Deforestation dropped by 33.6% in the first six months of...

Climate change is disrupting maple syrup by shortening its production season

The number of unusually warm winter days in parts of Maine has increased significantly over the past few decades, stressing maple trees into shifted sap flows and leaving producers with less consistent outputs.

The federal government pumped $70 billion into transit amidst reduced ridership during the COVID pandemic

When ridership collapsed by 75% in the spring of 2020, Congress sent transit agencies nearly $70B to help them survive. But that money has largely run out, and ridership remains 14-28% below prepandemic levels, leaving many transit systems with large budget deficits.

Niagara Falls stopped flowing for a full day in 1848 due to ice

In March 1848, ice jams halted the Niagara River entirely for over 24 hours, allowing people to walk on the riverbed—a rare event that drew international headlines.

Embargoes and economic mismanagement have pushed Cuba into its worst crisis in decades

For more than 60 years, Cuba has been pressured by two forces—the US economic embargo and its own government's repression and mismanagement. NPR's Throughline podcast explains how both contributed to today's blackouts, food shortages, and mass exodus.

Civilian 'little ships' saved Dunkirk: over 700 civilian boats joined the evacuation

Between May  26 and June 4, 1940, Operation Dynamo evacuated roughly 338,000 Allied soldiers from Dunkirk, France. Crucially, over 700 civilian “little ships”—yachts, fishing boats, pleasure craft—ferried troops from the shallow beaches to larger vessels, embodying a national rescue effort and preserving the core of Britain’s army for the war ahead.

Why bananas are in trouble

The average American eats over 25 pounds of bananas every year, but we won't for long if a deadly soil fungus continues to spread. Learn what scientists are doing to save the popular fruit.

Trade winds blow from east to west due to the Coriolis Effect

Warm air rises near the equator while cooler air sinks near the poles, creating circulation patterns that curve due to Earth's rotation. At the equator, doldrums—calm regions of no wind—build warm, moist air, creating storms.

The 2012 Maya-predicted apocalypse didn't really stem from the ancient Mayans

On Dec. 20, 2012, fears of a Mayan-predicted apocalypse gripped Earth, causing panic in some parts of the world, including the stockpiling of vodka in Russia. In this podcast, Maya expert David Stuart—who helped translate some of the relevant Mayan texts—debunks the notion, arguing the Mayan calendar's end marked a cycle, not doomsday.

Macy’s announced a series of pandemic-era store closures in January 2021

Specifically, as mall foot traffic declined, Macy’s sought to grow elsewhere (as did many other retailers around the same time).

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

Human-to-human transmission of hantavirus remains extremely rare, so the 2026 hantavirus cruise ship outbreak doesn't mean we're facing a COVID-style pandemic risk.

Scientists testing how climate change affects plants found, in a years-long simulation study, that poison ivy grew 70% faster with the resulting extra carbon dioxide.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

In 1915, workers recovered a submarine-like vessel from the Chicago River, prompting fears of German espionage

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'