Arctic Ozone Hole. The Ozone Layer The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth.
Nettie Stevens: Scientist Extraordinaire and STEM Icon; a Steampunk Feministâs Perspective Nettie Stevens If you want an example of the true grittiness and resourcefulness of the American spirit, you canât go past Nettie Stevens.
A Community Sailing Club on Lake Harriet. The Twin Cities Sailing Club (TCSC) welcomes adults of all sailing abilities â from beginners to experienced sailors â and offers a great opportunity to sail regularly during the summer on beautiful Lake Harriet (map) in Minneapolis, Minnesota. The clubâs sailing season runs from early May to early October.