Wednesday, October 3, 2012
With climate change stimulating plant growth due to elevated CO2 concentrations climate models calculated this would also stimulate uptake and sequestration of carbon. But a new long term (13 year) study looking at plant biomass growth in a high CO2 environment with Nitrogen nutrients indicates that plants also require enriched soil nitrogen to escalate uptake and sequestration of carbon from elevated CO2. Soil nitrogen just cannot be increased on a widespread basis.
Related: Rising atmospheric Carbon Dioxide levels threaten crop yields and food security
Tuesday, October 2, 2012
By Charis Palmer, The Conversation
The Great Barrier Reef has lost half its coral cover in the last 27 years, and it could halve again by 2022 say researchers from the Australian Institute of Marine Science.
A study published today in the Proceedings of the National Academy of Sciences, found storm damage drove 48% of the loss, the crown of thorns starfish 42%, and bleaching 10%.
Those wonderful people at Deep Rogue Ram have given us more to laugh and think about with the current US Drought, climate change and the US Presidential election.
If you remember Pippa gave us the real weather report a few weeks ago at the start of September highlighting the record reduction in Arctic Sea Ice and unprecedented melting of Greenland ice sheet and thousands of record temperatures broken in North America.