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.
Ron Wyden (b. May 3, 1949, in Wichita, Kansas) is a Democratic member of the U.S. Senate from the state of Oregon. Wyden was first elected to the Senate in 1996. Wyden won re-election in 2016. He faced Mark Callahan (R) and Steven Cody Reynolds (I) in the general election. Oregonâs U.S. Senate race was rated as safely Democratic in 2016.