How 'green' are environmentally friendly fireworks?

Fireworks are used in celebrations around the world, including Independence Day in the U.S., the Lantern Festival in China and the Diwali Festival in India. However, the popular pyrotechnic displays emit large amounts of ...

When bushfires create their own weather system

The recent bushfires in Australia have been terrifying. As we talk of firenadoes and megablazes, we're understanding just how dangerous and unpredictable fire behavior can be.

Analysis of wildfire smoke will help calibrate climate models

Thunderstorms generated by a group of giant wildfires in 2017 injected a small volcano's worth of aerosol into the stratosphere, creating a smoke plume that lasted for almost nine months. CIRES and NOAA researchers studying ...

African smoke-cloud connection target of NASA airborne flights

Over the southeast Atlantic Ocean, a 2,000-mile-long plume of smoke from African agricultural fires meets a near-permanent cloud bank offshore. Their meeting makes a natural laboratory for studying the interactions between ...

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 ...

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