"United States Special Presidential Envoy on Climate John Kerry and United Nations Secretary-General Antonio Guterres are to “celebrate” the US’s return to the Paris Agreement, the US state department has announced."

"An ancient, well-preserved tree that was alive the last time the Earth's magnetic poles flipped has helped scientists pin down more precise timing of that event, which occurred about 42,000 years ago."

"Humans are making Earth a broken and increasingly unlivable planet through climate change, biodiversity loss and pollution. So the world must make dramatic changes to society, economics and daily life, a new United Nations report says.

"New research shows that oceanic shark and ray abundance has declined by nearly three-quarters since 1970, and industrialized fishing is to blame."

"The WHO team's main public conclusion so far is that it's "extremely unlikely" that the virus originated in a lab in Wuhan. The scientists think the virus most likely started in bats, then jumped to other animals, then to humans."

"From a small lab in Cambodia, Dr. Jessica Manning is on the lookout for emerging diseases."

"Wild plants related to our main agricultural crops are important to future food security. But more than half are endangered, a new study finds."

"Struggling luxury car brand Jaguar will be fully electric by 2025, the British company said Monday as it outlined a plan to phase out internal combustion engines."