Trees struggle to ‘breathe’ as climate warms

Trees are struggling to sequester heat-trapping carbon dioxide (CO2) in warmer, drier climates, meaning that they may no longer serve as a solution for offsetting humanity’s carbon footprint as the planet continues to warm, according to a new study.

Did dementia exist in ancient Greek and Rome?

Did the ancient Greeks and Romans experience Alzheimer’s? Medical texts from 2,500 years ago rarely mention severe memory loss, suggesting today’s widespread dementia stems from modern environments and lifestyles, a new analysis shows.