Prof. Jim White: Sea level rise and the melting of sea ice and glaciers (TWO of TWO)
Dr. Jim White turns his attention to ice. The accelerated melting of the Arctic sea ice and the ice caps of Greenland and Antarctica.
Concentrations of carbon dioxide – after water vapor the most important greenhouse gas – are measured in parts per million. The organization 350 dot org expresses in its name that – to be safe from catastrophic climate change – we should not go over 350 ppm of CO2 in the atmosphere. However in late 2016 the measurements at Mauna Loa, Hawaii, went over 400 ppm for the first time in modern history. (And on March 9, 2017 the reading was 405 ppm)
When a visionary scientist, Charles Keeling, began daily readings for CO2 concentration from Mauna Loa in [ . . . ]
Podcast: Play in new window | Download (Duration: 28:58 — 19.9MB)
