Unusual Winds Drive a Small 2019 Ozone Hole

The video discusses the ozone hole, its causes, and seasonal fluctuations. It highlights the role of CFCs in ozone depletion and the impact of weather patterns, particularly the polar vortex, on the ozone layer. Despite the small ozone hole this year due to unusual weather, the ozone layer shows signs of recovery thanks to the Montreal Protocol. NASA and NOAA's research efforts are also mentioned.

What chemical compounds are primarily responsible for the creation of the ozone hole?

• Carbon dioxide

• Chlorofluorocarbons (CFCs)

• Methane

• Nitrous oxide

Which international agreement was crucial in banning the use of CFCs?

• Kyoto Protocol

• Paris Agreement

• Geneva Convention

• Montreal Protocol

During which season does the ozone hole typically reach its maximum size?

• Northern winter

• Southern summer

• Northern autumn

• Southern spring

What unusual weather pattern contributed to the smaller ozone hole this year?

• Jet stream

• Polar vortex

• La Niña

• El Niño

Which organizations have collaborated to study the ozone hole since its discovery?

• NOAA and IPCC

• NOAA and ESA

• NASA and NOAA

• NASA and ESA