Equinox 2025 marks the official start of spring in the Northern Hemisphere, bringing equal day and night. As the sun crosses ...

Heat waves have gotten hotter in the Northern Hemisphere in recent decades ... they can influence distant parts of the globe as well, often thousands of kilometers away. One is the boreal summer ...

Summer 2024 was the hottest in the northern hemisphere since records began ... "During the past three months of 2024, the globe has experienced the hottest June and August, the hottest day ...