A balanced explainer on the AI bubble debate: what bulls and bears argue, how the dot-com comparison holds up, and the signals ordinary investors should watch.

Bottled water use persists across 81 countries despite microplastic awareness. The policy challenge is rebuilding trust in tap water, and here is how cities can do it.

US measles cases rose 8% in one week to 4,410. Here is what is driving the increase, the symptoms to watch for, and the current vaccination guidance.

A study of more than 16,000 students finds classroom smartphone bans significantly improve grades, with struggling students benefiting most.