A group of micro-organisms may be responsible for much of the world's vitamin B12 production in the oceans, with implications for the global carbon cycle and climate change, says a study.
The US space agency, NASA, is developing the Global Ecosystem Dynamics Investigation (GEDI) Lidar device to map forests on Earth in 3D and increase understanding of their role in the carbon cycle.
Researchers have found that deep winter mixing, a seasonal process which carries colder and deeper, nutrient-rich water to the surface, plays very crucial role in transporting iron to the surface.
Wild fires not only destroy millions of trees each year but the residue is transported to the sea by rivers which penetrates the carbon cycle, a recent study has revealed.
Mysterious organisms in the dark depths of the ocean are converting carbon dioxide into a form useful for life.
Day in Pics: 21st October
Showbiz World - October 21, 2014
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