Results for: World of Change

Coastline Change

The shoreline of Cape Cod provides a visual case study in the evolution and dynamic motion of barrier islands and spits. Read more

Managing Fire in Etosha National Park

Prescribed fires should prevent blazes from raging out of control in one of Namibia’s most prized wildlife preserves. Read more

World of Change: Green Seasons of Maine

Not many places on Earth have year-round greenery and four distinct seasons. The images in this series show the four seasons of Maine, the most forest-covered state in the U.S.A. Read more

World of Change: Columbia Glacier, Alaska

Since 1980, the volume of this glacier that spills into the Prince William Sound has shrunk by half. Climate change may have nudged the process along, but mechanical forces have played the largest role in the ice loss. Read more

World of Change: Athabasca Oil Sands

The Athabasca Oil Sands are at once a source of oil, of economic growth, and of environmental concern. This series of images shows the growth of surface mines around the Athabasca River from 1984 to the present. Read more

World of Change: Seasons of the Indus River

Fed by glaciers in the Himalayas and Karakorams — and by monsoon rains — the Indus River experiences substantial fluctuations every year. Because the river irrigates 18 million hectares of farmland, the landscape changes along with the river. Read more

World of Change: Global Temperatures

The world is getting warmer, whatever the cause. According to an analysis by NASA scientists, the average global temperature has increased by about 0.8°Celsius (1.4° Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975. Read more

World of Change: Seasons of Lake Tahoe

Perhaps the most familiar change in our changing world is the annual swing of the seasons. This series of images shows the effects of the seasons on the Lake Tahoe region between 2009 and 2010. Read more

World of Change: Devastation and Recovery at Mt. St. Helens

The devastation of the May 1980 eruption of Mt. St. Helens and the gradual recovery of the surrounding landscape is documented in this series of satellite images from 1979—2013. Read more

World of Change: Collapse of the Larsen-B Ice Shelf

In early 2002, scientists monitoring daily satellite images of the Antarctic Peninsula watched in amazement as almost the entire Larsen B Ice Shelf splintered and collapsed in just over one month. They had never witnessed such a large area disintegrate so rapidly. Read more

World of Change: Mountaintop Mining, West Virginia

Based on data from the Landsat satellites, these natural-color images document the growth of the Hobet mine in Boone County, West Virginia, as it expands from ridge to ridge between 1984 and 2013. Read more

World of Change: Yellow River Delta

Once free to wander up and down the coast of the North China Plain, the Yellow River Delta has been shaped by levees, canals, and jetties in recent decades. Read more

World of Change: Drought Cycles in Australia

Drought has taken a severe toll on croplands in Southeast Australia during many years this decade. Read more

World of Change: El Niño, La Niña, and Rainfall

For many people, El Niño and La Niña mean floods or drought, but the events are actually a warming or cooling of the eastern Pacific Ocean that impacts rainfall. These sea surface temperature and rainfall anomaly images show the direct correlation between ocean temperatures and rainfall during El Niño and La Niña events. Read more

World of Change: Severe Storms

This collection of images featuring the strongest hurricane, cyclone, or typhoon from any ocean during each year of the past decade includes storms both famous—or infamous—and obscure. Read more

World of Change: Burn Recovery in Yellowstone

In 1988, wildfires raced through Yellowstone National Park, consuming hundreds of thousands of acres. This series of Landsat images tracks the landscape’s slow recovery through 2011. Read more

World of Change: Global Biosphere

Earth would not be the planet that it is without its biosphere, the sum of its life. This series of images illustrates the variations in the average productivity of the global biosphere from 1999 to 2008. Read more

World of Change: Antarctic Ozone Hole

In the early 1980s, scientists began to realize that CFCs were creating a thin spot—a hole—in the ozone layer over Antarctica every spring. This series of satellite images shows the ozone hole on the day of its maximum depth each year from 1979 through 2010. Read more

World of Change: Amazon Deforestation

The state of Rondônia in western Brazil is one of the most deforested parts of the Amazon. This series shows deforestation on the frontier in the northwestern part of the state between 2000 and 2012. Read more

World of Change: Antarctic Sea Ice

Because of differences in geography and climate, Antarctica sea ice extent is larger than the Arctic’s in winter and smaller in summer. Since 1979, Antarctica’s sea ice has increased slightly, but year-to-year fluctuations are large. Read more

World of Change: Shrinking Aral Sea

A massive irrigation project has devastated the Aral Sea over the past 50 years. These images show the decline of the Southern Aral Sea in the past decade, as well as the first steps of recovery in the Northern Aral Sea. Read more

World of Change: Arctic Sea Ice

NASA satellites have monitored Arctic sea ice since 1978. Starting in 2002, they observed a sharp decline in sea ice extent. Read more

World of Change: Water Level in Lake Powell

Drought struck southern Utah in the early twenty-first century. The drought’s effects were easily seen in the fluctuating water levels of Lake Powell. Read more

World of Change: Mesopotamia Marshes

In the years following the Persian Gulf War, Iraqi residents began reclaiming the country’s nearly decimated Mesopotamian marshes. This series of images documents the transformation of the fabled landscape between 2000 and 2009. Read more

World of Change: Solar Activity

Images of sunspots and UV brightness document the 11-year cycle of solar magnetic activity. The series spans 1999–2010, capturing the most recent solar maximum and minimum, as well as the emergence of solar cycle 24. Read more

World of Change: Urbanization of Dubai

To expand the possibilities for beachfront tourist development, Dubai, part of the United Arab Emirates, undertook a massive engineering project to create hundreds of artificial islands along its Persian Gulf coastline. Read more