See where shade appears so you can survive a scorching summer in the city. The sun is liquifying Madrid. Again. June 2025 ...

Earth has experienced both hot and cold periods over time, though warm times have been more common. That’s true of the last 485 million years, as seen in this timeline reported in 2024. Our genus, ...

Vessels in a tree’s xylem transport water from the roots to the rest of the plant. Hardwood tree species tend to have large ...