Taking a global view, public health issues and the environment are intimately linked. As an example, research has demonstrated that cholera epidemics occur seasonally in Bangladesh, with peak outbreaks happening twice a year. This bimodal outbreak pattern closely follows the times when large monsoon events are frequent (spring and fall).
Water isn't the only thing pouring over Niagara Falls. Pollution from fires in Ontario, Canada is also making the one thousand mile trip, while being measured by NASA's Aqua satellite. One instrument that flies aboard two of NASA's satellites has provided two views of the pollution from the fires in Ontario.
By July 2011, Texas and New Mexico had completed the driest six-month period on record. Average rain between January and June was more than eight inches (203 millimeters) below average in Texas and 3.5 inches (89 millimeters) below average in New Mexico. Record warm temperatures also persisted in Texas between April and June. The lack of rain and the warm temperatures added up to exceptional drought.
Researchers have devised a model to anticipate drought and forest fires in the Amazon rainforest.The research, which used precipitation records dating back to 1970 and hotspots tracked by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA satellites, finds a strong correlation between sea surf
Ordinarily, the flashes of white in South America’s Atacama Desert rise from salt pans.But on July 7, 2011, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired these images, the white came from a far rarer commodity: snow.
A combination of record snowmelt and heavy rain has raised water levels along the Missouri River and its tributaries in the northern Rocky Mountains and Plains. Flooding is affecting parts of Montana, North Dakota, and South Dakota, USA Today reported, and was forecast to continue through at least late June.
On May 16, 2011, tan and gray smoke spread hundreds of kilometers across Alberta, Saskatchewan, and the Northwest Territories in Canada. At 10:00 a.m., the Alberta government reported 116 fires burning in the province, 34 of them out of control. The following day, the total number of fires had dropped to 100, and the number of uncontrolled fires had dropped to 22. But four new fires had started to burn out of control.