Hank tells us about the enormous concentrations of plastic debris floating around in the Pacific Ocean, why they're there and why they're a problem.

To tell the difference between quantities or amounts we normally measure them using appropriate units.

INTERVIEW: William H. Macy on the ton of products they use in his hair, on how proud he is that he never had a costume designer, on what's coming up next for his character, how he's writing the next episode at the 51st Monte-Carlo...

ZO Pedestrian walking away from a large construction site where a semi-truck backs up a little and stops as workers watch / Dubai, United Arab Emirates

Air Force breaks a world record by air-dropping the single heaviest unit ever / It's a twenty-five ton package, kept level during the low altitude drop by four parachutes. It's the Air Force's latest technique for air dropping heavy...

Yves Simoneau, Daniel Giat, and Ton Thayer at the 'Bury My Heart At Wounded Knee' Premiere at the American Museum of Natural History in New York, New York on May 23, 2007. (Footage by WireImage Video/Getty Images)

INTERVIEW: Molly Sims on what brings her out tonight, what she loves about juicy couture, how the brand has transitioned over time and how she owns a ton of it. Also talks about the election and is wearing Juicy Couture. at the Opening...

Tricia Quick, Denise Rich, Michele Rella and Ton Quick at the 2009 Angel Ball at New York NY. (Footage by WireImage Video/GettyImages)

HA Forklift is transporting a large bundle of lumber as it sways in the wind on a hot day / Dubai, United Arab Emirates

HA Truck is driving towards cargo area to drop off workers / Dubai, United Arab Emirates

Canadian Prime Minister Lester Pearson arrives in Caledon, Ontario by helicopter / greeted by crowd / flags of the 18 competing nations flying on poles / landowner Conn Smythe stands next to Prime Minister Pearson in front of 2 ton...

INTERVIEW: Molly Sims on what brings her out tonight, what she loves about juicy couture, how the brand has transitioned over time and how she owns a ton of it. Also talks about the election and is wearing Juicy Couture. at the Opening...

CLEAN : Costa Concordia salvage operation

ParaguayÂ’s National Anti-Drug Secretariat (SENAD) presented on Thursday an 18 ton shipment of marijuana that had been bound for Argentina and Uruguay which was seized during an operation by the Paraguayan narcotics unit

Road Networks Could be Privatised

CLEAN : US crushes ton of ivory in New York's Times Square

Indonesia President Joko Widodo defends his administration's tough war on drugs as police begins incinerating nearly a ton of illegal narcotics in the capital Jakarta

CLEAN : More than ton 1 of marijuana seized in Colombia

CLEAN : Chad to burn ton of ivory as warning to po

A Mexican who weighs almost half a ton gets ready to receive surgery next week to loose weight