billion people on the planet

that's another China and India; and one of the most pressing questions we need

to answer with a growing population

in the face of a changing climate, is how we gonna feed everyone?

We've come to After Hours here in At-Bristol to find out about some foods

of the future. First of all, if we're going to grow more crops

where we find the land to do it? One solution is not to use the land at all

but instead turned to the seas. Algae are simple, single-celled plant organisms that

can grow very rapidly at sea.

They may be at the bottom of the food chain, but already widely consumed in

places like China and Japan. They range from microscopic slimes to gigantic and

seaweeds and kelp. And with so many varieties the taste can vary quite a lot.

If we're going to be growing more

we need to think about which crops are going to be resilient to a changing climate.

Quinoa is a grain crop with edible seeds, renowned for its hardiness.

It's grown in a variety of climates from coastal regions in Chile

to over 13,000 feet in the Andes. However the growing popularity of quinoa in the

Western world has seen its price

triple. In Bolivia and Peru, where qunioa is grown and used as a

staple food source, poorer people can now no longer afford it

and so instead imported junk food is much cheaper.

Locusts, grasshoppers, spiders, wasps,

worms, ants, and beetles aren't found on your typical western menu.

But thousands of species are eaten across Africa, Latin America and Asia.

With rising food prices and land shortages, it should be just a matter of time before

insect farms are setup in the UK. They're also good for the environment

since the creatures are far better at converting plant biomass

into edible meat, and they also emit far less methane.

So all that's left to do is just tuck in.

Crunchy.

Like... a bit dry... and paper-y.

It needs some sauce I think.

Next week we'll be investigating the science of making honeycomb.

So for more incredible, edible science click subscribe. Thanks for watching!