Dart makes, by the millions, white foam cups, clamshells, coffee cup lids, and disposable forks and knives — the single-use containers that enable Americans to eat and drink on the go.

Rules taking effect in California ban cups, clamshells and other food ware made from expanded polystyrene foam unless companies meet a high recycling target.

Here's what experts say about the viral claim as most of Texas braces for unusually cold temperatures this week.