31 December 2019 – The World Health Organization is informed of cases of pneumonia with an unknown cause, detected in Wuhan. This later turned out to be COVID-19, the cause of the COVID-19 pandemic
Roughly four million people, mostly students, demonstrate across the world to address climate change. Sixteen-year-old Greta Thunberg from Sweden leads the demonstration in New York City.
A volcano on White Island, New Zealand, kills 22 people after it erupts.
A volcano on White Island, New Zealand, kills at least 18 people after it erupts.
First confirmed case of COVID-19 in China
Hurricane Dorian, a category 5 hurricane, devastates the Bahamas, killing at least five.
Twenty-three people are killed and 23 injured in a shooting in El Paso, Texas.