Latest Carbon dioxide in the Earth's atmosphere Stories
Ocean acidification could devastate coral reefs and other marine ecosystems even if atmospheric carbon dioxide stabilizes at 450 ppm, a level well below that of many climate change forecasts, report chemical oceanographers Long Cao and Ken Caldeira of the Carnegie Institution's Department of Global Ecology in the journal Geophysical Research Letters.
Only changes in carbon dioxide levels are able to explain the transition from the mostly ice-free Greenland of three million years ago, to the ice-covered Greenland of today.
By McElwain, Jennifer PALEOBIOLOGY Plants as a Force of Nature THE EMERALD PLANET: How Plants Changed Earth's History. David Beerling. xvi + 288 pp. Oxford University Press, 2007. $30.
Scientists say long before mankind began burning fossil fuels, there was an eons-long balance between carbon dioxide emissions and Earthâ€™s ability to absorb them. But now the planet is having trouble keeping up.
Using data from the SCIAMACHY instrument aboard ESA's Envisat environmental satellite, scientists have for the first time detected regionally elevated atmospheric carbon dioxide â€“ the most important greenhouse gas that contributes to global warming â€“ originating from manmade emissions.
Rising levels of atmospheric carbon dioxide are believed to reduce the ability of some plants to withstand freezing, and the authors of the BioScience study suggest that global warming could lead to more freeze and thaw fluctuations in future winters.
According to a new study by scientists at the Carnegie Institution, halfway measures wonâ€™t do the job. To stabilize our planetâ€™s climate, we need to find ways to kick the carbon habit altogether.
New research paints a bleak picture for coral reefs and the communities that depend on them if emissions of greenhouse gases are not dramatically curbed.
Like a piece of chalk dissolving in vinegar, marine life with hard shells is in danger of being dissolved by increasing acidity in the oceans.
The transition from an ice age to an ice-free planet 300 million years ago was highly unstable, marked by dips and rises in carbon dioxide, extreme swings in climate and drastic effects on tropical vegetation.