Hemp could disrupt the myriad industries that produce and use plastics. You can make a car out of hemp. Imagine a hemp car with an engine running on clean-burning biofuel.

California farmers are known for producing some of the finest fruits, vegetables and nuts in the world. But what if the state’s big agriculture also included marijuana?

Does weed expire? Here's how long your marijuana will last .

SANTA ROSA (KPIX 5) — There was a lot of buzz surrounding the state’s biggest pot fair this weekend in Santa Rosa.

The company, the largest distributor of cannabidiol (CBD) in North America, points to the dramatic growth in consumer and business awareness of CBD’s therapeutic properties.

TARANTO, Italy -- Farmers in a region of Italy once known for cheeses have turned to cultivating a type of cannabis -- not to smoke or sell -- but to decontaminate polluted soil.

The hemp program in Kentucky is in its infancy, having just 2,350 acres grown last year and 922 acres in 2015.

The Delavan facility is working on hundreds of genetic strains, and plants are harvested about five times each year.

The Delavan facility is working on hundreds of genetic strains, and plants are harvested about five times each year.

"Big Marijuana" is not inevitable.

Maybe you have heard of hemp in recent years, as momentum behind a movement to legalize the agricultural crop has grown with federal legislation and some states supporting it.

Maybe you have heard of hemp in recent years, as momentum behind a movement to legalize the agricultural crop has grown with federal legislation and some states supporting it.

HARRISBURG, Pa. – Governor Tom Wolf signs into a law a bill that allows the cultivation of industrial hemp in Pennsylvania.

HARRISBURG, Pa. – Governor Tom Wolf signs into a law a bill that allows the cultivation of industrial hemp in Pennsylvania.

According to an age-old farming tradition, the phase of the moon has a huge impact on how well a plant will grow.

Outdated policy is clearly hurting our farmers as the hemp market grows and American consumers rely upon imports from countries such as China and Canada.

Outdated policy is clearly hurting our farmers as the hemp market grows and American consumers rely upon imports from countries such as China and Canada.

A recent change to federal law allowed states to grow test plots of hemp only at university or government sites and Virginia is one 28 that are doing so.

A recent change to federal law allowed states to grow test plots of hemp only at university or government sites and Virginia is one 28 that are doing so.

There are currently 15 states with medical cannabis home grow provisions and three states (D.C. included) where adults are allowed by state law to cultivate at home recreationally, with some of these states carrying heavier qualifications than others.

Farmers from throughout the state gained insight into Hawaii’s newest crop as the annual Hawaii Farmers Union United Convention kicked off Friday at OK Farms in Hilo.

Farmers from throughout the state gained insight into Hawaii’s newest crop as the annual Hawaii Farmers Union United Convention kicked off Friday at OK Farms in Hilo.

Environmental cleanup could be as simple as using natural resources, such as Indian mustard seed, sunflowers and hemp.

WASHINGTON — Supporters of industrial hemp are optimistic the crop has a future in a state known for sweeping fields of corn and soybeans.

WASHINGTON — Supporters of industrial hemp are optimistic the crop has a future in a state known for sweeping fields of corn and soybeans.

Individuals interested in the hemp industry, science and policy can attend concurrent tracks in each area and a two-day scientific poster session and trade show.

Hemp was once a mainstay crop in Virginia, until it ended up being banished as part of the long U.S. war on drugs starting in the 1930s.

The prospect of growing industrial hemp for a living in Rowan County is apparently a hot topic.

The prospect of growing industrial hemp for a living in Rowan County is apparently a hot topic.

One acre of hemp can reportedly yield up to 5,300 pounds of straw, which can be turned into 1,300 pounds of wood fiber.

DENVER (AP) -- Colorado livestock could be eating hemp under a bill that passed the state Senate Tuesday.

Cannabis: It’s not just for medicinal or recreational purposes. At least that's what one commercial grower hopes.

A bill that would legalize hemp production in New Mexico passed another legislative hurdle on Monday.

A bill that would legalize hemp production in New Mexico passed another legislative hurdle on Monday.

With pot consumption now legal in half of all states for either medical or recreational purposes, the long-dormant business of hemp production may well be poised for a renaissance.

31 states have passed legislation allowing hemp research or production.

RICHMOND, Va. (WSET) -- The Manufacturing of Industrial Hemp for commercial purposes was approved according to Virginia's Legislation Information System.

RICHMOND, Va. (WSET) -- The Manufacturing of Industrial Hemp for commercial purposes was approved according to Virginia's Legislation Information System.

Casinos on Native American land have poured billions into tribal economies since the late 1980s, lifting many people from poverty. Now, some hope, cultivating industrial hemp could do the same.

Clint Pyatt is a third-generation farmer from Oklahoma who has traveled the world promoting the hemp industry. So it’s no coincidence that the 45-year-old Marine Corps veteran is trying to shepherd hemp into Pueblo County.

It’s been nearly a century in the making, but this May will bring with it the first legal planting of the versatile, valuable industrial hemp oilseed and fiber crop in Washington State in approximately 90 years.

It’s been nearly a century in the making, but this May will bring with it the first legal planting of the versatile, valuable industrial hemp oilseed and fiber crop in Washington State in approximately 90 years.

Industry insiders believe industrial hemp is on a slow-burn toward titan crop status and will be the fastest growing segment of agricultural crops during the next 15 years.

Though commercial marijuana became legal in Alaska in February 2015, hemp is not yet legal.

Though commercial marijuana became legal in Alaska in February 2015, hemp is not yet legal.

BROOMFIELD, Colo. – The Colorado Department of Agriculture (CDA) is announcing that three industrial hemp seed varieties have passed the statewide THC validation and observation trial and are now eligible to be grown by the Colorado Seed Growers Association for production of “CDA Approved Certified Seed.”

BROOMFIELD, Colo. – The Colorado Department of Agriculture (CDA) is announcing that three industrial hemp seed varieties have passed the statewide THC validation and observation trial and are now eligible to be grown by the Colorado Seed Growers Association for production of “CDA Approved Certified Seed.”

Australians may soon be able to buy hemp seeds to snack on, if a new proposal is given the thumbs-up.

Hemp history week began on June 6, and one hemp businessman and activist is driving across the country for the second phase of his Hemp Road Trip, to show America the power of industrial hemp.

Legislation recently passed in Hawaii’s Senate that sets the foundation to legalize hemp grown for research, but the bill awaits Governor David Ige’s signature.