The National Center for Atmospheric Research (NCAR) Explorer Series is hosting a virtual event “The Impact of Volcanic Eruptions on the Global Climate and Ozone” on May 18, 2021 from 7:00PM-8:00PM EST.
The National Center for Atmospheric Research invites you to join us for a conversation on volcanic eruptions.
About this Event:
We invite you to join us for a virtual NCAR Explorer Series Conversation, “The Impact of Volcanic Eruptions on the Global Climate and Ozone” on Tuesday, May 18th from 7:00-8:00 pm (EST).
This event will be a live virtual webcast. Please register to receive an Eventbrite email reminder with the link to the webcast and details on how to participate.
Research Abstract:
Stratospheric ozone loss is a global environmental concern that is affected by industrial emissions and natural variability in our Earth system, including explosive volcanic eruptions that periodically send gases and particles into the stratosphere. Using global chemistry-climate computational models, scientists can now gain better insights into the effects that such eruptions have on reducing the rate of global warming, as well as delaying the recovery of stratospheric ozone from industrial emissions that are now banned by international treaties.
The latest released version of NCAR’s Whole Atmosphere Community Climate Model (WACCM) includes a new capability to calculate the evolution of volcanic gases, and the tiny and shiny aerosol droplets that they produce in the stratosphere. Calculations using WACCM show that cooling effects from small-to-moderate eruptions have offset 30% of the global warming from CO2 emissions since 2000. During the same era, model calculations show that eruptions have periodically expanded loss in the seasonal Antarctic ozone hole. Only by identifying and removing the impacts of such eruptions can we now conclude that stratospheric ozone recovery from anthropogenic halogens is currently emerging.
In this NCAR Explorer Series Conversation, we talk with NCAR scientist Dr. Michael Mills to learn how scientists study volcanic eruptions and how computational models have increased the ability to understand the impact these eruptions have on stratospheric ozone.
Free public event for ages 12+
For more information and to watch archived lectures, visit the NCAR's Explorer Series webpage.
We look forward to "seeing you" there!