Climate Change Effects on Airborne Pathogenic Bioaerosol Concentrations

by Shaina Van Stryk

The presence of extreme atmospheric changes due to global warming has raised questions about possible secondary effects on public health. Climate change has been shown to affect meteorological conditions such as wind speed, global radiation, and humidity. The same meteorological conditions influence the concentrations and transmissions of a variety of airborne bacteria and viruses, which may establish the possibility of a relationship between climate change and airborne pathogenic bioaerosol concentrations.   Continue reading

Past Polar Ice-Sheet Mass Loss Contributes to Sea-Level Rise

by Grace Stewart

Understanding of global mean sea level during past interglacial periods has greatly improved, but many challenges remain. By using coastal records and oxygen-18 proxy data, Dutton et al. (2015) determined global mean sea level and the contribution from polar ice sheets during three past interglacial periods. Although the results were uncertain, it was determined that global mean sea level was higher than modern day levels in every interglacial period studied—the mid-Pliocene warm period 3,000,000 years ago, the marine isotope stage (MIS) 11 400,000 years ago, and MIS 5e 125,000 years ago. Previous findings were corrected by taking glacial isostatic adjustment (the adjustment of the earth for a long time after a period of deglaciation), dynamic topography, and ice sheet reconstructions into account. Continue reading