Study: Fallen leaves found less polluting

(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?

(Phys.org) —The Amazon rain forest, popularly known as the lungs of the planet, inhales carbon dioxide as it exudes oxygen. Plants use carbon dioxide from the air to grow parts that eventually fall to the ...

Missions to Mars have only scratched its surface. To go deeper, scientists are proposing a spacecraft that can drill into the Red Planet to potentially find signs of life.

Fertilizing with inorganic nitrogen and phosphorus definitely improves crop yields, but does it also improve the soil?

(Phys.org) —In the quest to decrease the world's greenhouse gases, Cornell scientists have discovered that biochar – a charcoal-like substance – reduces the nemesis nitrous oxide from agricultural soil ...

Each time it rains, runoff carries an earthy tea steeped from leaf litter, crop residue, soil, and other organic materials into the storm drains and streams that feed Chesapeake Bay.

(Phys.org) —Ocean measurements taken more than 135 years ago during the scientific expedition of HMS Challenger have provided further confirmation of human-produced global warming over the past century.

A recently completed study of water supplies on Pennsylvania dairy farms found that about a quarter of those tested had at least one water-quality issue. And average milk production for these farms was about ...

Unsettled weather is an Iowa mainstay, and so is Inside's annual reminder of the university's severe weather safety and preparedness guidelines—for storms, extreme heat, flooding and more.

US lawmakers agreed to a bill that would speed construction of a Canada-US oil pipeline and circumvent the need for President Barack Obama's approval for the $5 billion project.

The European Union is unlikely to hammer out its new policy on global warming ahead of a global climate deal that could be clinched in 2015, Poland's environment minister said Wednesday.

What people take from nature – water, food, timber, inspiration, relaxation – are so abundant, it seems self-evident. Until you try to quantitatively understand how and to what extent they contribute ...