The map - which is, thankfully, hypothetical, but based on expert finding from Alex Wellerstein, a nuclear historian at the ...

If the air feels a little heavier today, you're not imagining it. A health advisory for elevated air pollution levels remains ...

Ozone: Summer days tend to see higher concentrations of this gas, which is harmful when it forms near the ground. Hot and sunny conditions accelerate that process. Ground-level ozone irritates the ...