Households account for about 18 percent of total energy use in the Beijing region but produce 50 percent of black carbon emissions and 69 percent of organic carbon emissions
The scientists studied sediments towering over 400 meters high from North-Eastern Greenland. Carbon isotope curves suggest that the prevalent seed ferns and conifers were replaced by spore plants in the space of a few millennia
Ecological communities experienced a major shift because many types of bacteria and algae were affected by the changes in ocean nutrients, researchers find
By reconstructing past global warming and the carbon cycle on Earth 56 million years ago, researchers have used computer modeling to estimate the potential perspective for future global warming