News tagged with biogeochemistry

Oxygen's challenge to early life

The conventional view of the history of the Earth is that the oceans became oxygen-rich to approximately the degree they are today in the Late Ediacaran Period (about 600 million years ago) after staying relatively ...

Jan 05, 2011
4.4 / 5 (15) 10 | with audio podcast

Analysis of fracking wastewater yields some surprises

Hydraulically fractured natural gas wells are producing less wastewater per unit of gas recovered than conventional wells would. But the scale of fracking operations in the Marcellus shale region is so vast that the wastewater ...

Jan 22, 2013
4.1 / 5 (10) 12 | with audio podcast

Extreme weather events fuel climate change

When the carbon dioxide content of the atmosphere rises, the Earth not only heats up, but extreme weather events, such as lengthy droughts, heat waves, heavy rain and violent storms, may become more frequent. ...

Aug 14, 2013
4.1 / 5 (16) 3 | with audio podcast