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Climate Program Office

FREETOWN HEAT ISLAND CAMPAIGN In January 2023, Yvonne Aki-Sawyerr, mayor of Freetown, Sierra Leone, shared information about heat health issues facing Freetown residents and the work being done to address these challenges. Courtesy of Eric Hubbard

Lessons from heat mapping in two tropical cities

For the last seven years, NOAA has supported more than 70 U.S. communities in projects to help citizens map the hottest neighborhoods of their community. Earlier this year, NOAA branched into the wider world to support heat island mapping campaigns overseas. 

Aerial photograph of the dominant fissure 3 erupting on the Northeast Rift Zone of Mauna Loa

When volcanoes roar: protecting the public and tracking long-term climate impacts

2022 was a busy year for volcanic eruptions with Hawaii's Mauna Loa and Kilaeau erupting simultaneously, along with Mount Semeru, Indonesia and the Hunga undersea volcano in Tonga. While the United States Geological Survey is the primary agency that monitors volcanic activity in the United States, the National Oceanic and Atmospheric Administration (NOAA) oversees safety systems for tsunamis and other volcano-related threats, as well as studies the impact of volcanic gasses on our global climate. 

Understanding the Arctic polar vortex

In late February, as the Southern Plains and Gulf Coast suffered through an unusually strong blast of wintry weather, weather talk turned to the polar vortex and the possibility that the extreme cold was yet another example of weather-gone-wild due to global warming.

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