1. UEE Seminar Series
Distinguished Speakers’
Hosted by School of Urban & Environmental Engineering
Climate Impact of the Montreal Protocol: Ozone Hole and Climate Change
Speaker : Seok-Woo Son
School of Earth and Environmental Sciences
Seoul National University
Abstract
The global warming associated with the increase in anthropogenic greenhouse gases has been often considered as the most important anthropogenic climate change in the past and these centuries. Other anthropogenic climate changes such as the Antarctic ozone hole have been simply assumed to be minor. In this presentation, it will be shown that ozone-hole-related climate change has played at least a comparable role to the greenhouse-gas-induced change in the Southern Hemisphere summer. I will also discuss the climate impact of the Montreal protocol which was designed to protect the ozone layer by phasing out the production of ozone depleting substances (CFCs, HCFCs, HFCs, halons, Br, etc) by presenting climate model results. It will be particularly shown that the Montreal protocol, which was entered into force in 1989, was successful and Antarctic ozone concentration has started to increase during last 10 years. In response to ozone recovery, overall atmospheric and oceanic circulations are anticipated to change against those associated with greenhouse gas increase.
Date & Time : 3:10 pm, Oct. 31, 2013 (Thu.)
Location : 711 EB2
Contact : Prof. Sarah Kang(2820)