In most terrestrial ecosystems, dissolved organic matter comes from plants and soil and can contain both organic carbon and ...

Since the 1920s, people have been finding fossils near Verdigre Creek in northeast Nebraska ... Strontium isotopes are ...

It’s often assumed that all soil organic carbon ultimately derives from recent vegetation, but researchers argue that carbon inherited from parent rocks can be important and deserves more focus.

Fossil bones absorb fluorine from soil and water, so fossils that have been in the same soil for the same amount of time should have roughly the same amount of fluorine. To authenticate that the ...

It stores it in the soil, plants or trees. These renewable sources of energy are much cleaner to use than fossil fuels because they do not produce harmful gases that cause pollution and climate ...

Scientists have identified the fossilized remains of the oldest-known ant - a winged insect with fearsome scythe-like jaws ...

Mercury is released by environmental and human-driven processes. And some forms, specifically methylmercury, are toxic to humans. Therefore, policies and regulations to limit mercury emissions have ...

Glaciers worldwide are archives of human pollution, preserving carbon from fossil fuels and wildfires in their ice for ...

Using soil samples from your own area, your class will get up close and see what they can find inside different soils. A practical observation activity looking at soil in detail, with discussion ...