As climate extremes intensify, adaptation debates favor new technologies. Terraces in the Philippines and Morocco show how people modified their landscapes to respond to past climate shifts.

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?"

Scientists have uncovered the mummified remains of cheetahs from caves in northern Saudi Arabia. Researchers excavated seven mummies along with the bones of 54 other cheetahs from a site near the city of Arar. Researchers aren’t sure how exactly these new cats got mummified, but the caves’ dry conditions and stable temperature could have played a role, according to the new study published Thursday in the journal Communications Earth and Environment.