The hole in Earth’s ozone layer this year was the smallest it’s been in almost 30 years, since 1988.
Each September, scientists from NASA measure the hole over Antarctica; they say its reduced size this year was strongly impacted by ‘an unstable and warmer Antarctic vortex.’
Here to explain is Kevin Gurney, a professor in the School of Life Sciences at ASU — he studies the global carbon cycle and climate change.
