This startup makes packaging from seaweed

London-based start-up Notpla has developed a sustainable seaweed lining for Just Eat’s takeaway packaging.

03:59 - Source: CNN
Call to Earth
NOTPLA seaweed packaging
Now playing
03:59
This startup makes packaging from seaweed
Jaguar video card image
Now playing
04:07
Jaguars in Belize need this forest corridor to survive
lion defenders card video
Now playing
03:49
Tribal warriors become lion defenders
The mountainous region of Gilgit-Baltistan is prime snow leopard habitat. Hussain estimates there around 30-50 snow leopards in the region around the 26 villages where he and his team work. Although it's hard to track these elusive animals, he says that at the moment the population is stable.
Now playing
04:00
Protecting Pakistan's elusive snow leopards
shawn heinrichs video card 3
Now playing
03:19
Cinematographer Shawn Heinrichs is inspiring people to protect our oceans
portugal rewild video card
Now playing
03:09
Bringing back wolves to a Portuguese valley
Jeremy Jones POW 5
Now playing
04:05
The snowboarder fighting to protect our winters
A young cub alongside an adolescent male. The first cubs to be born at Samara in nearly 200 years are now approximately two years old.
Now playing
03:57
Samara Private Game Reserve: How one family's rewilding project returned big cats to the Great Karoo
Erika Cuellar thumbnail 2
Now playing
03:24
Full of biodiversity, deserts also deserve protection
thomas pesquet
Now playing
04:04
The astronaut caring for 'spaceship Earth'
08 carbfix climeworks
Now playing
04:07
Icelandic company is turning CO2 into stone
copenhagen energy plant video card
Now playing
03:48
An energy plant so clean, you can ski there
sunflower sea star approaches prey
Now playing
03:50
Why scientists are breeding some of the ocean's top predators
shahriar caesar rahman bangladesh turtle conservation c2e spc intl_00001225.png
Now playing
03:15
Slow and steady wins the race: restoring Bangladesh's endangered turtle and tortoise species
C2E Whiskey Oysters 3
Now playing
03:31
See how whiskey brought these oysters back to life
call to earth day highlights wrap 1 spc intl c2e_00001812.png
Now playing
01:54
Young people are protecting the planet on Call to Earth Day
james cameron video card c2e
Now playing
04:33
James Cameron wants to preserve the ocean twilight zone
Harry Chan, Hong Kong's self-proclaimed "ghost net hunter," diving in Sai Kung.
Now playing
04:06
Meet Hong Kong's 'ghost net hunter'
vidyut mohan 1
Now playing
03:28
An Indian entrepreneur has a portable solution for fighting air pollution
potato custodians peru spc intl c2e_00034029.png
Now playing
04:15
'Potato custodians' are safeguarding this crop's future
fonio grain diakate c2e spc intl_00000518.png
Now playing
03:57
Fonio: The superfood that's a kernel of hope for the Sahel
breadfruit hawaii spc intl c2e_00003017.png
Now playing
04:08
Breadfruit: A new chapter for Hawaii's tree of life
diet burger
Now playing
03:11
5 ways to help the planet by changing your diet
nnaemeka ikegwuonu coldhubs cnn
Now playing
04:10
ColdHubs are keeping food fresh in Nigeria
rodrigo pacheco c2e spc intl_00003925.png
Now playing
03:41
This chef has a recipe for greener eating
Matilda Ho, founder of Bits x Bites.
Now playing
03:15
Meet Matilda Ho, the food disruptor changing tastes in China
bees principe spc intl_00001322.png
Now playing
03:21
The islanders saving bees for a sustainable future
cooked lionfish
Now playing
04:07
Invasive lionfish are bad for local sea life -- but good for eating
new york whales c2e spc intl_card
Now playing
03:31
The science helping New Yorkers and whales live in harmony
seahorse yellow amanda vincent 3 RESTRICTED
Now playing
04:23
Scientist's crusade to protect seahorses
sebastiao salgado interview c2e spc intl_00002922.png
Now playing
03:41
Sebastião Salgado's Amazonian odyssey
Cape Cormorants c2e spc intl _00000217.png
Now playing
03:35
The Cape cormorant rescue mission on Robben Island
Ellipsis drone trash cte spc intl_00011510.png
Now playing
03:36
UK startup uses drones to map plastic pollution
krithi karanth
Now playing
03:50
One woman's mission to help solve India's deadly conflict between people and wildlife
Taiwanese architect and engineer Arthur Huang was inspired by the ancient Roman practice of using discarded material in architecture.
Now playing
04:04
One man's mission to make treasure out of trash
bubble barrier c2e spc intl_00024529.png
Now playing
03:53
The 'Bubble Barrier' keeping plastic from the sea
kerstin forsberg video
Now playing
03:48
Kerstin Forsberg is fighting for manta rays
open sc australia c2e spc intl thumb
Now playing
03:49
How blockchain is protecting species and consumers from fish fraud
woodland burials
Now playing
03:47
How to be good to the planet when you die
blue nature alliance spc intl_00000316.png
Now playing
03:21
Blue Nature Alliance aims to protect 5% of the world's ocean in five years
laury cullen cover c2e
Now playing
03:38
Meet the forest engineer who wants to restore Brazil's lost Atlantic forest
Pati Riuz Corzo
Now playing
02:45
Meet the guardian of Mexico's "fat mountains"
SELKIRK, UNITED KINGDOM - OCTOBER 31:  Salmon attempt to leap up the fish ladder in the river Etterick on October 31, 2012 in Selkirk, Scotland. The salmon are returning upstream from the sea where they have spent between two and four winters feeding with many covering huge distances to return to the fresh waters to spawn.  (Photo by Jeff J Mitchell/Getty Images)
Now playing
03:28
Here's how to help the Atlantic salmon avoid extinction
A protected manta ray swims in the waters of Maldives
Now playing
03:32
Swimming with manta rays could help save them
Yunnan golden monkey
Now playing
03:35
The battle to save China's black snub-nosed monkeys
Members of the public, scientists and whale shark tour operators have contributed over 70,000 images of whale sharks to the Wildbook for Whale Sharks, an online photo identification system designed to track the animals using the patterns on their skin.
Now playing
03:47
NASA technology helps save the world's largest shark
Pablo García Borboroglu, founder of the Global Penguin Society.
Now playing
03:04
Millions of penguins protected thanks to this man
Algae growing on the Greenland ice sheet is causing it to melt faster.
Now playing
03:30
A 'frozen rainforest' of microscopic life is melting Greenland's ice sheet
Sunniva Sorby and Hilde Falun Storm are the first all-women team to overwinter in the Arctic. They are on a mission to highlight climate change with their online platform "Hearts in the Ice".
Now playing
03:08
Two women are enduring their second Arctic winter to highlight climate change
c2e carbon sinks 2
Now playing
03:36
How these 'sinks' regulate the climate
C2E Polars DV 1
Now playing
03:38
Can polar bears survive the climate crisis?
white shark call to earth video
Now playing
01:56
In Monterey Bay, scientists are tagging and tracking white sharks
kelp farm ireland c2e 2
Now playing
03:17
The underwater farm on an Irish island
mock cop26 c2e 3
Now playing
02:15
These students are taking our future into their own hands
sardine run south africa c2e spc intl_00000905.jpg
Now playing
02:35
Protecting South Africa's sardine run
arapaima still c2e
Now playing
02:50
João Campos-Silva is on a mission to save a river giant
Puffins billing
Now playing
03:21
How fake birds helped restore Maine's puffin colonies
Emma Camp is a marine biologist studying coral conservation and resilience at the University of Technology Sydney.
Now playing
03:33
The world's toughest corals could help save dying reefs
how mealworms eat plastic c2e 1
Now playing
03:03
The creature that can munch through plastic waste
Arun Krishnamurthy is the founder of the Environmentalist Foundation of India, a nonprofit organization working to restore freshwater lakes and ponds.
Now playing
03:36
The environmentalist cleaning up India's lakes
Examining a trawler sample aboard the SV TravelEdge, the vessel for the round the world eXXpedition.
Now playing
03:37
The all-female crew sailing the world to study plastic pollution
vreni haussermann c2e video card
Now playing
03:21
Take the plunge into 'one of the last wildernesses on Earth'
Louis Liebenberg, co-founder of animal tracking app CyberTracker.
Now playing
02:49
Trackers are helping to conserve the Kalahari
topher white cell phones rainforest intl C2E_00001105.jpg
Now playing
03:01
How old cell phones are spying on illegal loggers
solar foods thumb1
Now playing
03:13
How to make food from thin air
carboon footprint explainer card 1
Now playing
03:01
How to save the planet: Five simple things you can do
sri lanka mangroves intl C2E_00012908.jpg
Now playing
02:34
Protecting Sri Lanka's precious mangroves
anjali watson intl C2E_00010303.jpg
Now playing
02:47
Ecologist working to save the Sri Lankan leopard
kakapo new zealand C2E_00000801.jpg
Now playing
03:00
How New Zealand's rare kakapo is making a comeback
miranda wang plastic scn C2E _00012506.jpg
Now playing
02:29
Startup has new technology to help fix plastic crisis
Great Pacific Garbage Patch Hawaii California Ben Lecomte C2E _00000000.jpg
Now playing
03:28
Meet the man who swam through the Great Pacific Garbage Patch
ted turner two bison close
Now playing
02:08
Why Ted Turner is bringing back bison
ted turner save everything_00001413.jpg
Now playing
02:00
Ted Turner's mission to 'save everything'
ted turner captain planet vermejo_00013621.jpg
Now playing
02:33
Conserving nature on a New Mexico ranch
ted turner captain planet cartoon_00002005.jpg
Now playing
02:03
How Captain Planet inspired eco awareness
tree library 3
Now playing
07:28
This team is building the world's biggest library of trees