This detailed astronaut photograph shows the summit crater of Mexico’s Popocatepetl Volcano on February 7, 2009.
Published Mar 23, 2009
The looping medial moraines on Tajikistan’s Bivachny glacier offer a clue of periods when it surged rapidly forward.
Published Mar 17, 2015
This satellite image shows volcanic features on the summit of Redoubt Volcano, Alaska. Scientists believe an eruption at the volcano is likely in the coming weeks and months.
Published Feb 27, 2009
Though there are no historical accounts, geologic evidence suggests an eruption about 3,100 years ago affected Pre-Columbian settlements in Mexico.
Published Nov 25, 2013
Taken February 10, 2011, this astronaut photograph shows Pico de Orizaba, Mexico.
Published Feb 28, 2011
Currently 30.2 km long and between 0.5 and 2.5 km wide, Gangotri glacier is one of the largest in the Himalaya. Gangotri has been receding since 1780, although studies show its retreat quickened after 1971.
Published Jun 23, 2004
The retreat of one of Austria’s largest glaciers has stranded some of its tributaries, now classified as separate glaciers.
Published Jul 3, 2015
In August 2015, Cotopaxi volcano awoke with its first significant eruption in more than 70 years.
Published Sep 16, 2015
One of the highest mountain reliefs on Earth can be found in this tiny country sandwiched between eastern India and the Tibetan plateau,
Published Oct 11, 2005
Precipitation increases and a layer of debris on the terminus have helped maintain the longest mid-latitude glacier.
Published Jan 5, 2015
The glacier atop Iceland’s Ok volcano was declared dead in 2014. Satellite images show the latter stages of its decline.
Published Aug 9, 2019
The topography of Popocatépetl exhibits the classic cone shape of a stratovolcano.
Published Dec 3, 2005
Concepción Volcano is one of the tallest and most active of Nicaragua’s volcanoes. The 1,610-meter (5,280-foot), cone-shaped volcano is the northern half of dumbbell-shaped Isla de Ometepe. To the northwest of the crater, a very faint plume (probably steam) creeps like fog down the mountain, blurring the sharp gullies that carve the volcano’s flanks.
Published May 29, 2007
NIWA scientists stated that this glacier had retreated by 5 kilometers (about 3 miles) over the previous three decades. They also stated that New Zealand glaciers on the whole had lost 5.8 cubic kilometers (roughly 1.4 cubic miles) over the same time period.
Published Jan 27, 2008
For half a century, it has been the one known Alaskan glacier to withstand the effects of climate change—until now.
Published Nov 5, 2019
The first global catalog of glaciers is helping scientists get a better handle on how much sea levels could rise in coming years.
Published Jun 26, 2014
The Pamir Mountains contain some of the world’s highest peaks and the longest glacier outside of the polar regions.
Published Aug 26, 2012
