Geography Of The World
Why Lake Tahoe Spends Millions Fighting Invasive Species
Why Lake Tahoe Spends Millions Fighting Invasive Species, from mandatory boat inspections to zebra mussel prevention that keeps the alpine lake clear.
The US Lakes Where Water Levels Are Actually Rising
The US lakes where water levels are actually rising, tracked by NOAA and the USGS across the Great Lakes, western reservoirs, and beyond.
The Highest Navigable Lakes in the World
Of the many millions of lakes in the world, few are both at high altitude and navigable by boat. These are the world's highest navigable lakes.
How Lake Baikal Holds More Water Than All The Great Lakes Combined
Lake Baikal is smaller than Lake Superior alone, yet it holds more fresh water than all five Great Lakes. The reason is depth: over a mile straight down.
How The Aral Sea Vanished In A Single Lifetime
In 1960 the Aral Sea was the world's fourth largest lake. Within one lifetime it was mostly desert. Here is how it drained, and how the north came back.
10 Famous Landforms In The U.S.
There are not many countries in the world that contain the same amount of beautiful landforms as the U.S. does. Their beauty is unmatched and will leave you breathless!
Eastern European Countries
The 10 countries considered to be Eastern Europe were all once part of the eastern, communist bloc of countries led by the Soviet Union during the Cold War.
What Happens To Ships That Vanish At Sea
What happens when a ship disappears at sea? Explore the science behind vanished vessels, the real causes, and why the ocean sometimes keeps its secrets.
5 Most Snake-Filled Bodies Of Water In West Virginia
Though fatalities are extremely rare, it is best to understand these creatures' habitats and features so you can safely enjoy the beautiful riverside trails.
How Cold Is The Bottom Of The Ocean?
Most of the deep ocean floor stays between 32 and 39°F, even at the equator. A look at how cold the seafloor gets, and why it never warms up.
The US Reservoirs Closest To Dead Pool Status
A look at the US reservoirs closest to dead pool, from Lake Powell and Lake Mead to Elephant Butte, with the latest levels and what the risk means.
The Lakes Formed by Collapsed Caves
Ten lakes formed by cave collapses or openings, revealing massive underground caverns below, each with unique history or features.
The Lakes Formed by the Last Ice Age
Nine lakes across three continents, from Loch Ness to the Great Lakes, that glaciers carved during the last ice age and meltwater filled as the ice retreated.
The Caspian Sea Holds Three Times More Water Than the Great Lakes
The Caspian Sea holds over three times more water than all Great Lakes, but lakes provide essential freshwater for millions.
When Did The Last Major Volcanic Eruption In The US Happen?
The eruption of Mount St. Helens in 1980 was the last major volcanic eruption in the United States. Learn more about the 1980 eruption of Mount St. Helens.
The Most Polluted Lakes in the World
The eight most polluted lakes in the world, from radioactive Lake Karachay to microplastic-choked Lake Lugano and algae-plagued Lake Erie.
The Lakes Where Salmon Grow Largest Outside Alaska
See 10 lake systems in North America, Europe, and Patagonia that have produced Chinook and Atlantic salmon over 40 pounds.
The 10 Highest Mountains In The United States
The 10 Highest Mountains in the United States are all located in Alaska and are noted for their glacial settings and icy summits.
How Sea Lampreys Nearly Destroyed the Great Lakes
How did sea lampreys nearly destroy the Great Lakes? These parasitic invaders collapsed the lake trout fishery before a decades-long fight back.
How Quagga Mussels Are Outcompeting Zebra Mussels in the Great Lakes
How quagga mussels are outcompeting zebra mussels in the Great Lakes, from their deep-water edge to the ecosystem damage driving fish and algae problems.
How Are Canyons Formed?
A canyon is a deep cleft between escarpments or cliffs, often formed by rivers, weathering, erosion or tectonic activity.
The Biggest Lakes in British Columbia
Which is the biggest lake in British Columbia? Explore the province's largest, led by the 680-square-mile Williston Lake, and the rivers that feed them.
How Grass Carp Threaten the Great Lakes Wetlands
Learn how invasive species threaten ecosystems and why grass carp have become a major concern after their introduction to non-native waters.
Which Country Has the Most Fresh Water?
Brazil, Russia, and the United States are home to the top three largest amounts of renewable fresh water.
5 Most Snake-Filled Bodies Of Water In New York
Discover five New York lakes and wetlands where northern water snakes and garters concentrate along the shoreline, plus safety tips.
6 Most Snake-Filled Bodies Of Water In Connecticut
Connecticut's rivers, lakes, reservoirs, and forest ponds create ideal habitat for snakes, with six waterways standing out for their abundant populations.
The Lakes That Used to Be Part of the Ocean
Earth is constantly evolving through geological processes, both slow and catastrophic. Among those processes are evolutions of lakes which were once oceans.
How Many Cities Sit on the Shores of the Great Lakes?
Discover which major cities line the Great Lakes, from Chicago and Toronto to Duluth and Buffalo, across eight US states and Ontario.
Oldest Mountain Ranges Of The World
It takes a very long time to form a mountain. Small volcanoes can grow up in just a few months, but a big mountain typically takes thousands of years to take shape.
The Lakes That Sit on Fault Lines in the United States
Fault lines built some of America's most striking lakes. See how quakes and shifting crust shaped Tahoe, Reelfoot, and more.
The 10 Deepest Lakes in the World
The world's deepest lakes generally formed through ancient cataclysmic events, leading to deep rifts in the Earth which became filled with water.
How Long Would It Take to Drain Lake Superior?
Discover Lake Superior’s vast size, 191-year retention time, ecology, wildlife, islands, and importance to Great Lakes life.
Why the Great Salt Lake Keeps Shrinking
The Great Salt Lake's record low water levels in 2022, caused by reduced streamflow and evaporation, threaten Utah's economy, wildlife, and air quality.
The Shrinking Lakes of the American West Ranked
The West's shrinking lakes ranked, from Walker Lake's collapse to Owens Lake's dust, plus the Colorado reservoirs and rare recovery stories.
The US Lakes With the Most Fish Species
This article ranks ten species-rich U.S. lakes, showing how size, temperature, fertility, and region shape their unique fish communities differently.
The Lakes That Sit Below Sea Level
Most lakes are in lowlands, some sit below sea level due to tectonic activity and evaporation, forming unique, extreme environments.
10 Largest Lake Islands In The World
Lake islands are islands that are situated within a lake. Some of the world’s largest lake islands are discussed in this article.
10 Largest Lakes In Europe
Most of Europe's biggest lakes hide in just three countries. Discover the 10 largest lakes in Europe and the Ice Age history that shaped them
The Major Deserts Of The United States
Saguaro forests, gypsum dunes, and the hottest place on Earth. Discover the major deserts of the United States and the surprising variety within each
6 Most Snake-Filled Bodies Of Water In Arkansas
From Lake Ouachita to the White River, these are the 6 most snake-filled bodies of water in Arkansas, where cottonmouths and rattlesnakes share the water.