Phosphorus is one of the elements that is crucial for the construction of organisms and their metabolism. Its cycle across the environments is also one of the best understood. However, it occurred to ...

POCATELLO, Idaho (KIFI) – An Idaho State University professor’s research is tackling one of the hottest debates in geology: Has human activity changed the planet enough to mark a new geologic time ...

An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were ...