Eruptions of the Yellowstone volcanic system have included the two largest volcanic eruptions in North America in the past few million years; the third largest was at Long Valley in California and produced the Bishop ash bed.
On the diesel Passat, the TDI badge stands for Turbocharged Direct Injection, which isn't really all that helpful as the gasoline-powered Passat is also turbocharged and also uses direct injection. Volkswagen attempts to clear this up by calling this Passat the Passat TDI Clean Diesel.
New Jersey State temporary disability benefits (TDI) is a mandated income insurance program that applies to private workers. The program provides entitlements for off the job accidents and illnesses. NJ State temporary disability benefits are widely used by growing families. Childbirth is the most common reason.