In a new, non-peer-reviewed paper, a scientist from NASA's Jet Propulsion Laboratory (JPL) brings together an eclectic team of researchers to examine the biggest existential threats to humanity and how any might become the "Great Filter" event. Like mass extinctions of the past, these scenarios posit a catastrophe that will filter out life on Earth until very little or even none remains. And while previous mass extinctions were caused by naturally occurring climate change or freak asteroid impacts, today we have a much larger portfolio of self-created potential disasters.
Jonathan H. Jiang is an astrophysicist and atmospheric physicist who works for NASA's JPL in the Los Angeles area. He studies aerosols and atmosphere, in the form of things like cloud cover, reflectivity of different aerosol particles like atmospheric black carbon, and climate and weather systems.
In a 2020 oral history interview, Jiang described how he peered at the sky from his childhood home in Beijing: "I was born in the middle of the 1960s—there was a cultural revolution, so everything was quiet. At that time in Beijing, at night we didn't have a lot of city lights, no skyscrapers, nothing, so there were a lot of stars. After dark we saw the sky. So I was wondering about that. I think, after I became ten years old, I wanted to study the sky."
In a new, non-peer-reviewed paper, a scientist from NASA's Jet Propulsion Laboratory (JPL) brings together an eclectic team of researchers to examine the biggest existential threats to humanity and how any might become the "Great Filter" event. Like mass extinctions of the past, these scenarios posit a catastrophe that will filter out life on Earth until very little or even none remains. And while previous mass extinctions were caused by naturally occurring climate change or freak asteroid impacts, today we have a much larger portfolio of self-created potential disasters.
Jonathan H. Jiang is an astrophysicist and atmospheric physicist who works for NASA's JPL in the Los Angeles area. He studies aerosols and atmosphere, in the form of things like cloud cover, reflectivity of different aerosol particles like atmospheric black carbon, and climate and weather systems.
In a 2020 oral history interview, Jiang described how he peered at the sky from his childhood home in Beijing: "I was born in the middle of the 1960s—there was a cultural revolution, so everything was quiet. At that time in Beijing, at night we didn't have a lot of city lights, no skyscrapers, nothing, so there were a lot of stars. After dark we saw the sky. So I was wondering about that. I think, after I became ten years old, I wanted to study the sky." |
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