The view from the top of the tower shows leaves emerging across the deciduous forest. On a blustery March morning, Petya Campbell stood atop a 204-foot-tall tower and looked across the waving canopy ...

The view from the top of the tower shows leaves emerging across the deciduous forest. On a blustery March morning, Petya Campbell stood atop a 204-foot-tall tower and looked across the waving canopy ...

Using instruments old and new, scientists collected data as leaves emerged across a deciduous forest in Edgewater, Maryland.

The view from the top of the tower shows leaves emerging across the deciduous forest. On a blustery March morning, Petya Campbell stood atop a 204-foot-tall tower and looked across the waving canopy ...

In Earth’s history before the Industrial Revolution, Earth’s climate changed due to natural causes not related to human activity. Most often, global climate has changed because of variations in ...

Every month on Earth Matters, we offer a puzzling satellite image. The April 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, ...

Every month on Earth Matters, we offer a puzzling satellite image. The April 2024 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, ...

Have you ever wondered what it would be like to live in a different part of the world? What would the weather be like? What kinds of animals would you see? Which plants live there? By investigating ...

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 ...

Earth has experienced climate change in the past without help from humanity. We know about past climates because of evidence left in tree rings, layers of ice in glaciers, ocean sediments, coral reefs ...

All of this extra carbon needs to go somewhere. So far, land plants and the ocean have taken up about 55 percent of the extra carbon people have put into the atmosphere while about 45 percent has ...

Just as the incoming and outgoing energy at the Earth’s surface must balance, the flow of energy into the atmosphere must be balanced by an equal flow of energy out of the atmosphere and back to space ...