Smithsonian scientists connect climate change, origins of agriculture in Mexico
New charcoal and plant microfossil evidence from Mexicos Central Balsas valley links a pivotal cultural shift, crop domestication in the New World, to local and regional environmental history. Agriculture in the Balsas valley originated and diversified during the warm, wet, postglacial period following the much cooler and drier climate in the final phases of the last ice age. A significant dry p...Researchers to scrutinize megacity pollution during Mexico City field campaign
A team of researchers from the National Center for Atmospheric Research (NCAR) and other institutions is heading to Mexico City to participate in one of the most complex field campaigns ever undertaken in atmospheric chemistry. From March 1 to 29, the team will make multiple research flights in the NSF/NCAR C-130 aircraft and operate ground instruments to investigate the chemical and physical tr...Genetically modified maize not found in southern Mexico
COLUMBUS , Ohio Contrary to what many scientists thought, genetically modified (GM) corn has not yet spread to native maize crops in southern Mexico....... After analyzing tens of thousands of seeds from maize crops grown in 2003 and 2004, researchers from Mexico and the United States found no evidence of transgenes in these indigenous varieties....... The finding surprised the researchers, said...Scientists find evidence of catastrophic sand avalanches, sea level changes in Gulf of Mexico
The Gulf of Mexico, 130 miles south of Galveston, Texas -- An international team of marine research scientists working for the Integrated Ocean Drilling Program (IODP) have found new evidence that links catastrophic sand avalanches in deep Gulf waters to rapid sea level changes. By analyzing downhole measurements and freshly retrieved sediment cores, IODP scientists are reconstructing the history...