Q&A: Urban doom loop—what it is and how cities can stop it

Recent images of downtown San Francisco—emptied of office workers now dialing in remote and filled with wandering homeless people—has struck fear for the future of urban areas. A Columbia University professor coined the ...

Beetles in a bottle: A message from aliens to schools

While invasive alien species (IAS) represent a growing threat to global biodiversity and ecosystems, public awareness of them hasn't seen a significant increase. Many researchers believe informing people about IAS is an essential ...

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