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An active logging site near Groveland, California.

23 images that show how much we’ve reshaped planet Earth over the last century

Humans have had an unmistakable impact on Earth — one that pops out in sharp relief in this collection of before-and-after images.
A gigantic cavity nearly 1,000 feet tall is growing at the bottom of Thwaites Glacier in west Antarctica.

There’s a cavity underneath Antarctica that’s two thirds the size of Manhattan — a sign ice sheets are melting faster than we though...

Nearly 14 billion tons of ice have melted underneath Antarctica's Thwaites Glacier, leaving an almost Manhattan-sized cavity beneath the surface.
The team has been working at the BEAMISH camp in West Antarctica since November 2018.

Scientists just drilled the deepest hole ever in western Antarctica, going 2 kilometers down through the ice to study how it’s melting

Scientists drilled a 2-kilometer-deep hole in western Antarctica in hopes of understanding how the continent's ice is reacting to our warming planet.
A set of photos shows the difference between the ice on Switzerland's Rhone Glacier between September 2018 (top) and September 2009 (bottom).

People are using the viral ’10-year challenge’ as a stark warning about what’s happening to our planet

The "10-year challenge" that really matters: how melting glaciers, rising seas, and warmer oceans have already changed our planet in the past decade.
An illustration of asteroids careening toward northern Greenland.

A 5-billion-ton iron meteorite once slammed into Greenland — and scientists found its Paris-size crater under the ice

When a team of scientists studied a new map of Greenland's bedrock, they found a 16-mile-wide depression that looked like a gigantic blast crater.
Vast glaciers in West Antarctica seem to be locked in an irreversible thaw linked to global warming that may push up sea levels for centuries.

Scientists think a giant artificial wall propped up under Antarctica’s ice sheets could stop catastrophic sea-level rise

If the sheets of ice sitting atop Antarctica and Greenland were to collapse, the rates of sea-level rise could skyrocket, destroying trillions of dollars' worth of property and infrastructure. To prevent or slow these floods from washing over cities, we may want to build huge walls under the sheets.

Before and after photos show how quickly ice is disappearing on Swiss glaciers

The Rhone Glacier in the Swiss Alps has been shrinking quickly over the last several years. To reduce the amount that disappears, nearby residents have been wrapping the glacier in blankets over the past eight summers. Take a look at how the amount of ice on the Rhone Glacier has changed since 2008.
A photo of Antarctica's A-68 iceberg in September 2017.

Antarctica’s monster A68 iceberg is still alive — but the Maryland-size ice block just pivoted toward its doom

Antarctica's A68a iceberg, the continent's sixth-largest in recorded history, is still floating more than a year after it broke off. It weighs about 1 trillion tons, is about the size of Maryland, and is mostly intact. However, the ice block just made a big and fatal turn.
This is the Mertz Glacier in January 2017.

One of the scariest effects of climate change might already be happening — and it’d mean our projections are way off

Warm waters are pooling underneath Antarctic glaciers in a way that's causing glaciers to melt more rapidly. This could slow ocean currents and lead to a rapid sea-level rise event. That pulse, as it's called, could cause seas to rise by more than 10 feet and trigger superstorms.

A new NASA tool predicts how high seas will rise in your city if specific glaciers melt

A stark report from NASA details how the collapse of specific glaciers in Greenland and Antarctica will impact coastal cities around the world.