Results > Posts Tagged With > Ecosystem

High levels of carbon dioxide threaten oyster survival

It has been widely reported that the build up of carbon dioxide (CO2) in the air, which is caused by human behavior, will likely lead to climate change and have major implications for life on earth.
But less focus has been given to global warming’s evil twin, ocean acidification, which occurs when CO2 lowers the pH of water bodies, thus making them more acidic. This lesser known phenomenon may have catastrophic effects on all sea life.
Oysters in Peril
Inna Sokolova, associate professor of biology at the University of North Carolina at Charlotte, studies the affect of high carbon dioxide on oyster survival, growth and shell hardness. The results of her research suggest that creatures once thought to …

Read More » Comments Off

Land plants process 15 percent of total atmospheric carbon dioxide each year

Terrestrial ecosystems draw about 123 billion tonnes of carbon (450 billion tonnes of carbon dioxide, CO2) from the atmosphere each year. Based on worldwide local measurements and data-driven model simulations, an international team of researchers led by Christian Beer of the Max Planck Institute for Biogeochemistry in Jena has for the first time provided an observation-based estimate of the largest global flux of carbon between land and atmosphere and of its climate dependencies.
The researchers evaluated the result against spatially explicit process models including the leading model LPJmL from PIK. Tropical ecosystems such as rain forests and savannas account for almost two thirds of the CO2 uptake, they report in an article published by the journal …

Read More » Comments Off