Why ozone poses a challenge to food security

Ozone is a well-known and interesting gas. It is thought of as a "good" gas when present in the stratosphere, where it forms the ozone layer sitting 15 to 30 kilometres above Earth that protect life from detrimental ultraviolet ...

Smoke from wildfires can tip air quality to unhealthy levels

Smoke plumes emanating from wildfires are swept high up into the air and spread over thousands of kilometers even days after a fire has been put out. The fine particles and harmful ozone contained in these plumes often have ...

Measuring ozone from space

Today is the UN's International Day for the Preservation of the Ozone Layer – the perfect opportunity to look at how and why measurements of this molecule are taken from space.

How NASA sees El Nino effects from space

This winter, weather patterns may be fairly different than what's typical—all because of unusually warm ocean water in the east equatorial Pacific, an event known as El Niño. Because of El Niño, California is expected ...

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