In most of the country, formaldehyde contributes more to outdoor cancer risk than any other toxic air pollutant. Look up your address to see risks from the chemical on your block and where it comes fr...

The Environmental Protection Agency’s attempts to reckon with formaldehyde have been repeatedly thwarted by the companies that rely on it. If the past is any guide, even modest steps toward reform are...

Claudia Sheinbaum’s response to Trump’s threat of tariffs revealed truths that the president-elect doesn’t want Americans to know.