What exactly does it mean for storms to get “stronger”? Does it mean faster winds? A larger wind field? Lower pressure at the center? More rain and snowfall? Higher storm surges? “You have to remember ...

Update on March 19, 2025: This Landsat image shows fields in southern Poland that have taken on ribbon-like shapes after generations of land division. Congratulations to Annie Burgess for being the ...

The average temperature in winter ranges from -40°C (-40°F) to 20°C (68°F). The average summer temperatures are usually around 10°C (50°F). The coniferous forest is sandwiched in between the tundra to ...

× This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. Before widespread human settlement began to encroach on the ...

Examine the set of graphs below for a given city. Read carefully the temperature and precipitation scales on the graphs. Review the biome information. Two biome choices are given for each set of ...

The time it takes carbon to move through the fast carbon cycle is measured in a lifespan. The fast carbon cycle is largely the movement of carbon through life forms on Earth, or the biosphere. Between ...

Agencies and scientists across the globe continue to use Landsat data to monitor deforestation and to enforce environmental policies. For example, in 2003, the state of Mato Grosso, Brazil, piloted a ...

The most valuable fossils found in sediment cores are from tiny animals with a calcium carbonate shell, called foraminifera. One species of foraminifera lives in the icy waters of the Arctic above ...

Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or ...

Sea surface temperatures have a large influence on climate and weather. For example, every 3 to 7 years a wide swath of the Pacific Ocean along the equator warms by 2 to 3 degrees Celsius. This ...

How far can dust travel? Where does it come from? Explore the answers to these questions and make a model of how dust affects sky visibility in Dust a True World Traveler.

Choose a plant specimen by clicking on its picture to learn about its characteristics. If desired, review the biomes by choosing links on the far left. Match each plant specimen with the biome where ...