News tagged with plant growth

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Oxygen fuels the fires of time

Variations in the Earth's atmospheric oxygen levels are thought to be closely linked to the evolution of life, with strong feedbacks between uni- and multicellular life and oxygen. Over the past 400 million years the level ...

Aug 02, 2010
4.8 / 5 (14) 29 | with audio podcast

How hard are we pushing the land?

We may be becoming an ever more technologically advanced society, but we remain as dependent as ever -- if not more and more so -- on the natural world that surrounds us.

Dec 15, 2010
4.1 / 5 (15) 8 | with audio podcast