The air we breathe seems infinite and unchanging, but scientists monitoring Earth’s oxygen levels are seeing something deeply ...

Stefan Lovgren writes on how freshwater fish from the Arctic to Africa are endanged by climate change and the unpredictable ...

Zone 2 training is cardio done at a steady, low intensity. It has benefits for aerobic training (so you can run faster), anaerobic training (helping you to recover faster between reps and sets, or ...

“Dedicated efforts and investments by EPA, Connecticut, New York and local governments have drastically reduced the amount of ...

There are about 15,000 satellites orbiting the Earth. Most of them, like the International Space Station and the Hubble ...

You are taught early in science that oxygen on Earth comes from sunlight. Plants, algae, and cyanobacteria use light to split water and release oxygen, shaping the atmosphere and making complex life ...

Low blood pressure may cause no symptoms, but the presence of symptoms necessitates medical attention. Possible symptoms can include dizziness, fainting, fatigue, confusion, nausea, blurry vision, ...

For roughly 2 billion years of Earth's early history, the atmosphere contained no oxygen, the essential ingredient required for complex life. Oxygen began building up during the period known as the ...

Forbes contributors publish independent expert analyses and insights. I cover logistics and supply chain management. As October's harvest season reaches full swing, the Mississippi River Basin is ...

When you drive over a river now you might think that river is very low. You are probably correct. Let’s see just how low many Michigan rivers are right now. The U.S. Geological Survey (called the USGS ...

A Polish skier has made history as the first person to climb Mount Everest and ski down it without the aid of bottled oxygen. Andrzej Bargiel, 37, left Everest Base Camp in Nepal on Sept. 19, climbing ...